Add workflow to manually update the lib cache #4376
Merged
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We cache
lib
in order to speed up our builds as building all of LLVM takes a long long time. Once an update to any of the files that would invalidate the cached libs is done, until a new cached version is done on "main", it won't apply to new PRs.This workflow allows us to update (if needed) the lib cache for any given branch. In general, this would usually only be used on
main
.