ci: request VM with updated cpu and more memory per core

[scotthart]

We recently had a build timeout, boost the VM specs to see if we can build faster.

[coryan]

We recently had a build timeout, boost the VM specs to see if we can build faster.

That is not why you are getting timeouts. You are getting timeouts because the vcpkg cache is not building, and it is not building because the AVRO package is broken with CMake 3.30.

CMake Error at /b/pubsub-avro/vcpkg_installed/x64-linux/share/unofficial-avro-cpp/unofficial-avro-cpp-config.cmake:62 (set_target_properties):
  The link interface of target "unofficial::avro-cpp::avrocpp" contains:

    Boost::filesystem

  but the target was not found.  Possible reasons include:

    * There is a typo in the target name.
    * A find_package call is missing for an IMPORTED target.
    * An ALIAS target is missing.

Call Stack (most recent call first):
  /usr/local/vcpkg/scripts/buildsystems/vcpkg.cmake:857 (_find_package)
  CMakeLists.txt:25 (find_package)


CMake Generate step failed.  Build files cannot be regenerated correctly.

CMake Error at /b/cmake-prefix-pubsub-avro/src/verify-sample-pubsub-avro-stamp/verify-sample-pubsub-avro-configure-.cmake:47 (message):
  Stopping after outputting logs.