Auto merge of #128361 - Oneirical:testle-deforestation, r=jieyouxu

Migrate `link-cfg` and `rustdoc-default-output` `run-make` tests to rmake

Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).

try-job: aarch64-apple
try-job: x86_64-msvc
try-job: x86_64-mingw
try-job: x86_64-gnu-llvm-18
try-job: i686-msvc

Author: bors