Always use included script for installing. #4763

Job	Run time
RunBantBuildCleaner	3m 16s
ClangTidy	14m 19s
PrepareVSPlugin	2m 9s
MacOsBuildDevTools	4m 32s
x86_64 test	3m 34s
VerifyFormatting	22s
arm64 test	4m 24s
x86_64 test-clang	4m 30s
KytheVerification	0s
arm64 test-clang	4m 20s
KytheXrefs	0s
x86_64 test-nortti	3m 43s
MacOsBuild	9m 18s
x86_64 test-c++20	3m 45s
WindowsBuild	13m 50s
x86_64 test-c++23	4m 0s
x86_64 smoke-test	10m 47s
arm64 smoke-test	12m 34s
x86_64 asan	5m 26s
x86_64 asan-clang	4m 50s
x86_64 compile	9m 47s
arm64 compile	3m 42s
x86_64 compile-clang	2m 37s
arm64 compile-clang	3m 41s
x86_64 compile-static	3m 24s
arm64 compile-static	4m 1s
x86_64 compile-static-clang	2m 58s
arm64 compile-static-clang	3m 59s
x86_64 coverage	14m 10s
x86_64 clean	7m 45s
arm64 clean	7m 7s
📦 Release	1s
Build and deploy GitHub pages	1s
	2h 52m 52s

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