Auto merge of #128507 - Oneirical:testart-from-scratch, r=jieyouxu

Migrate `libtest-thread-limit` `run-make` test 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).

Please try, but **only if normal CI is green**:

// try-job: armhf-gnu // <- failed on this
try-job: aarch64-gnu