[llvm] [ci] limit parallel windows compile jobs to 24 (PR #93329)

[Aaron Ballman via llvm-commits]

AaronBallman wrote:

> > FWIW, I see this from a clangd test with some regularity:
> > ```
> > timeout=1200 --time-tests C:/ws/src/build/tools/clang/tools/extra/include-cleaner/test C:/ws/src/build/tools/clang/tools/extra/pseudo/test C:/ws/src/build/tools/clang/tools/extra/clangd/test/../unittests C:/ws/src/build/tools/clang/tools/extra/clangd/test C:/ws/src/build/tools/clang/tools/extra/test"
> > ```
> > 
> > 
> >     
> >       
> >     
> > 
> >       
> >     
> > 
> >     
> >   
> > from https://buildkite.com/llvm-project/github-pull-requests/builds/65934
> 
> This was fixed in #92888. Make sure your branches are up to date.

Good to know, thank you! Yeah, it seems that PR was updated before the fix went in, so it was missing the fix.

https://github.com/llvm/llvm-project/pull/93329