Update build environment

[neilcook]

• Add el-7, 8 9 aliases
• Replace rocky-9 with oracle-9

[github-actions[bot]]

Test Results

    2 files  ±0      2 suites  ±0   32m 4s :stopwatch: -4s   69 tests ±0    69 :heavy_check_mark: ±0  0 :zzz: ±0  0 :x: ±0  138 runs  ±0  138 :heavy_check_mark: ±0  0 :zzz: ±0  0 :x: ±0 

Results for commit 2f4de29c. ± Comparison against base commit d04a452f.

:recycle: This comment has been updated with latest results.