[Chapel Merge] Pin llvm for portability testing with linuxbrew

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Branch: refs/heads/main
Revision: 31d1b9ad7716f2f28802f946422742317b52817d
Author: jabraham17
Link: Pin llvm for portability testing with linuxbrew by jabraham17 · Pull Request #28476 · chapel-lang/chapel · GitHub
Log Message:
Pin llvm for portability testing with linuxbrew (#28476)

Pins the LLVM for portability testing with linuxbrew

[Not reviewed - trivial]

Compare: Comparing 540d168f1920a2ef6148b9f62e8a7597be1ffa3c...ba8252db4567fa4c151119cf3321910b70ebd51f · chapel-lang/chapel · GitHub

Diff:
M util/devel/test/portability/provision-scripts/apt-get-and-linuxbrew.sh
https://github.com/chapel-lang/chapel/pull/28476.diff