[Chapel Merge] Add LLVM 22 testing and future-proof other LLVM tests

Branch: refs/heads/main
Revision: ee6cb965a3d13e3b1dc1a5ed27bdd1deb4b541ed
Author: jabraham17
Link: Add LLVM 22 testing and future-proof other LLVM tests by jabraham17 · Pull Request #28828 · chapel-lang/chapel · GitHub
Log Message:
Add LLVM 22 testing and future-proof other LLVM tests (#28828)

Adds LLVM 22 testing

I also adjusted the other LLVM test configs to not be brittle to minor
version changes, which should not effect the run of the tests

[Reviewed by @arifthpe]

Compare: Comparing d0e1e8f26116645f0b24ac3a1a6450e8f45394de...47175d3ee2bc9f9bed6647fabb90f1c5a00f2149 · chapel-lang/chapel · GitHub

Diff:
M util/cron/test-linux64-llvm14.bash
M util/cron/test-linux64-llvm15.bash
M util/cron/test-linux64-llvm16.bash
M util/cron/test-linux64-llvm17.bash
M util/cron/test-linux64-llvm18.bash
M util/cron/test-linux64-llvm19.bash
M util/cron/test-linux64-llvm20.bash
M util/cron/test-linux64-llvm21.bash
A util/cron/test-linux64-llvm22.bash
https://github.com/chapel-lang/chapel/pull/28828.diff