[binarycaching] cache is not invalidated on update

[redbaron]

Describe the bug

when toolchain file include() another file, obtain to the included files doesn't invalidate vcpkg binarycache and doesn't trigger rebuild

Expected behavior
included files are taken into account when calculating toolchain file hash

Additional context

get_toolchain_cache function just hashes the toolchain file content , which ignores any includes. Hashing result of cmake --trace -P toolchain.cmake might give a better result

[Neumann-A]

Known, proposed solution is partly a duplicate of #19984

[Cheney-W]

Thanks for Neumann's reply!
Close this issue as duplicate of #19984.