chore(project-template): remove slicing object linter warning

This warning is frequently hit when using e.g. the ReadAnyGroup in
ApplicationCore, but we fail to see any benefit coming from this warning
for other scenarious. Hence we decided to disable it. Object slicing
is valid C++ and the behaviour is rather obvious.

.clang-tidy

@@ -1,5 +1,5 @@
 HeaderFilterRegex: ".*"
-Checks: "-*,boost-*,bugprone-argument-comment,bugprone-assert-side-effect,bugprone-bad-signal-to-kill-thread,bugprone-bool-pointer-implicit-conversion,bugprone-branch-clone,bugprone-copy-constructor-init,bugprone-dangling-handle,bugprone-dynamic-static-initializers,bugprone-exception-escape,bugprone-fold-init-type,bugprone-forward-declaration-namespace,bugprone-forwarding-reference-overload,bugprone-implicit-widening-of-multiplication-result,bugprone-inaccurate-erase,bugprone-incorrect-roundings,bugprone-infinite-loop,bugprone-integer-division,bugprone-lambda-function-name,bugprone-macro-*,bugprone-misplaced-*,bugprone-move-forwarding-reference,bugprone-multiple-statement-macro,bugprone-narrowing-conversions,bugprone-no-escape,bugprone-not-null-terminated-result,bugprone-parent-virtual-call,bugprone-posix-return,bugprone-redundant-branch-condition,bugprone-reserved-identifier,bugprone-signal-handler,bugprone-signed-char-misuse,bugprone-sizeof-*,bugprone-spuriously-wake-up-functions,bugprone-string-*,bugprone-suspicious-*,bugprone-swapped-arguments,bugprone-terminating-continue,bugprone-throw-keyword-missing,bugprone-too-small-loop-variable,bugprone-undefined-memory-manipulation,bugprone-undelegated-constructor,bugprone-unhandled-*,bugprone-unused-*,bugprone-use-after-move,bugprone-virtual-near-miss,clang-*,cppcoreguidelines-interfaces-global-init,cppcoreguidelines-narrowing-conversions,cppcoreguidelines-no-malloc,cppcoreguidelines-owning-memory,cppcoreguidelines-pro-type-const-cast,cppcoreguidelines-pro-type-cstyle-cast,cppcoreguidelines-pro-type-member-init,cppcoreguidelines-pro-type-reinterpret-cast,cppcoreguidelines-pro-type-static-cast-downcast,cppcoreguidelines-pro-type-union-access,cppcoreguidelines-slicing,darwin-*,google-build-explicit-make-pair,google-build-namespaces,google-default-arguments,google-explicit-constructor,google-global-names-in-headers,google-objc-*,google-readability-avoid-underscore-in-googletest-name,readability-braces-around-statements,google-runtime-*,google-upgrade-googletest-case,hicpp-exception-baseclass,hicpp-multiway-paths-covered,hicpp-no-assembler,hicpp-signed-bitwise,linuxkernel-*,llvm-namespace-comment,llvm-prefer-*,llvm-twine-local,misc-definitions-in-headers,misc-misplaced-const,misc-new-delete-overloads,misc-non-copyable-objects,misc-redundant-expression,misc-static-assert,misc-throw-by-value-catch-by-reference,misc-unconventional-assign-operator,misc-uniqueptr-reset-release,misc-unused-*,modernize-avoid-bind,modernize-avoid-c-arrays,modernize-concat-nested-namespaces,modernize-deprecated-*,modernize-loop-convert,modernize-make-*,modernize-pass-by-value,modernize-raw-string-literal,modernize-redundant-void-arg,modernize-replace-*,modernize-return-braced-init-list,modernize-shrink-to-fit,modernize-unary-static-assert,modernize-use-auto,modernize-use-bool-literals,modernize-use-default-member-init,modernize-use-emplace,modernize-use-equals-*,modernize-use-nodiscard,modernize-use-noexcept,modernize-use-nullptr,modernize-use-override,modernize-use-transparent-functors,modernize-use-uncaught-exceptions,modernize-use-using,mpi-*,objc-*,openmp-*,performance-faster-string-find,performance-for-range-copy,performance-implicit-conversion-in-loop,performance-inefficient-algorithm,performance-inefficient-vector-operation,performance-move-*,performance-no-automatic-move,performance-noexcept-move-constructor,performance-trivially-destructible,performance-type-promotion-in-math-fn,performance-unnecessary-*,portability-*,readability-avoid-const-params-in-decls,readability-const-return-type,readability-container-size-empty,readability-convert-member-functions-to-static,readability-delete-null-pointer,readability-else-after-return,readability-function-size,readability-identifier-naming,readability-inconsistent-declaration-parameter-name,readability-make-member-function-const,readability-misleading-indentation,readability-misplaced-array-index,readability-non-const-parameter,readability-qualified-auto,readability-redundant-*,readability-simplify-*,readability-static-*,readability-string-compare,readability-uniqueptr-delete-release,readability-uppercase-literal-suffix,readability-use-anyofallof,zircon-*,missing-noreturn"
+Checks: "-*,boost-*,bugprone-argument-comment,bugprone-assert-side-effect,bugprone-bad-signal-to-kill-thread,bugprone-bool-pointer-implicit-conversion,bugprone-branch-clone,bugprone-copy-constructor-init,bugprone-dangling-handle,bugprone-dynamic-static-initializers,bugprone-exception-escape,bugprone-fold-init-type,bugprone-forward-declaration-namespace,bugprone-forwarding-reference-overload,bugprone-implicit-widening-of-multiplication-result,bugprone-inaccurate-erase,bugprone-incorrect-roundings,bugprone-infinite-loop,bugprone-integer-division,bugprone-lambda-function-name,bugprone-macro-*,bugprone-misplaced-*,bugprone-move-forwarding-reference,bugprone-multiple-statement-macro,bugprone-narrowing-conversions,bugprone-no-escape,bugprone-not-null-terminated-result,bugprone-parent-virtual-call,bugprone-posix-return,bugprone-redundant-branch-condition,bugprone-reserved-identifier,bugprone-signal-handler,bugprone-signed-char-misuse,bugprone-sizeof-*,bugprone-spuriously-wake-up-functions,bugprone-string-*,bugprone-suspicious-*,bugprone-swapped-arguments,bugprone-terminating-continue,bugprone-throw-keyword-missing,bugprone-too-small-loop-variable,bugprone-undefined-memory-manipulation,bugprone-undelegated-constructor,bugprone-unhandled-*,bugprone-unused-*,bugprone-use-after-move,bugprone-virtual-near-miss,clang-*,cppcoreguidelines-interfaces-global-init,cppcoreguidelines-narrowing-conversions,cppcoreguidelines-no-malloc,cppcoreguidelines-owning-memory,cppcoreguidelines-pro-type-const-cast,cppcoreguidelines-pro-type-cstyle-cast,cppcoreguidelines-pro-type-member-init,cppcoreguidelines-pro-type-reinterpret-cast,cppcoreguidelines-pro-type-static-cast-downcast,cppcoreguidelines-pro-type-union-access,darwin-*,google-build-explicit-make-pair,google-build-namespaces,google-default-arguments,google-explicit-constructor,google-global-names-in-headers,google-objc-*,google-readability-avoid-underscore-in-googletest-name,readability-braces-around-statements,google-runtime-*,google-upgrade-googletest-case,hicpp-exception-baseclass,hicpp-multiway-paths-covered,hicpp-no-assembler,hicpp-signed-bitwise,linuxkernel-*,llvm-namespace-comment,llvm-prefer-*,llvm-twine-local,misc-definitions-in-headers,misc-misplaced-const,misc-new-delete-overloads,misc-non-copyable-objects,misc-redundant-expression,misc-static-assert,misc-throw-by-value-catch-by-reference,misc-unconventional-assign-operator,misc-uniqueptr-reset-release,misc-unused-*,modernize-avoid-bind,modernize-avoid-c-arrays,modernize-concat-nested-namespaces,modernize-deprecated-*,modernize-loop-convert,modernize-make-*,modernize-pass-by-value,modernize-raw-string-literal,modernize-redundant-void-arg,modernize-replace-*,modernize-return-braced-init-list,modernize-shrink-to-fit,modernize-unary-static-assert,modernize-use-auto,modernize-use-bool-literals,modernize-use-default-member-init,modernize-use-emplace,modernize-use-equals-*,modernize-use-nodiscard,modernize-use-noexcept,modernize-use-nullptr,modernize-use-override,modernize-use-transparent-functors,modernize-use-uncaught-exceptions,modernize-use-using,mpi-*,objc-*,openmp-*,performance-faster-string-find,performance-for-range-copy,performance-implicit-conversion-in-loop,performance-inefficient-algorithm,performance-inefficient-vector-operation,performance-move-*,performance-no-automatic-move,performance-noexcept-move-constructor,performance-trivially-destructible,performance-type-promotion-in-math-fn,performance-unnecessary-*,portability-*,readability-avoid-const-params-in-decls,readability-const-return-type,readability-container-size-empty,readability-convert-member-functions-to-static,readability-delete-null-pointer,readability-else-after-return,readability-function-size,readability-identifier-naming,readability-inconsistent-declaration-parameter-name,readability-make-member-function-const,readability-misleading-indentation,readability-misplaced-array-index,readability-non-const-parameter,readability-qualified-auto,readability-redundant-*,readability-simplify-*,readability-static-*,readability-string-compare,readability-uniqueptr-delete-release,readability-uppercase-literal-suffix,readability-use-anyofallof,zircon-*,missing-noreturn"
 
 CheckOptions:
   - key: readability-identifier-naming.PrivateMemberPrefix