GRPC is less aggressive in overriding `CMAKE_CXX_STANDARD` nowadays.
This allows us to take a less invasive approach to ensure that the
provided abseil package is configured with the same implementation
for the provided c++17 compatibility shims.
Instead of always setting `CMAKE_CXX_STANDARD`, we only do it to
override hard-coded downgrade on darwin. With that, we can use the
default configuration for abseil-cpp, reducing the number of instances
of that library in the build closure to one.
The default is x86_64-linux only, but we build many packages
for aarch64-linux on Hydra that depend on this (possibly indirectly),
and it can be cumbersome when a dependency doesn't have its own job.
checkInputs used to be added to nativeBuildInputs. Now we have
nativeCheckInputs to do that instead. Doing this treewide change allows
to keep hashes identical to before the introduction of
nativeCheckInputs.
This bumps google-cloud-cpp to 0.14.0, which switched to using pkgconfig
for more of the dependencies. On top of that, the installation looks
much better (we don't need to fixup library paths and move files around)
On top of that, upstream introduced another intermediate dependency
(googleapis-cpp-cmakefiles).
Obsoletes #67769.
