Too large grpc.lib file on Windows

[magnesj]

What version of gRPC and what language are you using?

1.68 c++

What operating system (Linux, Windows,...) and version?

Windows 11
MSVC 17.12.4

What runtime / compiler are you using (e.g. python version or version of gcc)

MSVC 17.12.4

What did you do?

Created a build of grpc using vcpkg

What did you expect to see?

A generated file that can fit into build cache on GitHub Action.

What did you see instead?

A very large lib-file that was rejected by the build cache on GitHub Action.

Anything else we should know about your project / environment?

Issue reported in vcpkg microsoft/vcpkg#43454

File size on disk for some libraries in the same build: