Build and test HolmesGPT

Add `holmes generate alertmanager-tests` command #49

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
build (3.9)	58s
build (3.10)	54s
build (3.11)	1m 54s
build (3.12)	1m 14s
	5m 0s