Add prometheus metric with version information #3143

Job	Run time
build (ubuntu-latest, 3.8)	3m 17s
Test Docs	1m 6s
build (ubuntu-latest, 3.11)	3m 18s
Test Examples	40s
Test Lint	51s
build (windows-latest, 3.8)	3m 9s
Test Minimum Versions	3m 23s
build (windows-latest, 3.11)	3m 10s
Test Prereleases	3m 18s
build (macos-latest, 3.8)	3m 21s
build (macos-latest, 3.11)	3m 21s
Check Links	3m 19s
build (windows-latest, 3.9)	3m 10s
build (ubuntu-latest, pypy-3.8)	3m 19s
build (macos-latest, 3.10)	3m 20s
check_release	1m 53s
build (ubuntu-latest, 3.12)	3m 19s
integration_check (ubuntu-latest, 3.8)	2m 13s
integration_check_pypy	1m 44s
integration_check (ubuntu-latest, 3.9)	2m 14s
integration_check (ubuntu-latest, 3.10)	2m 25s
integration_check (ubuntu-latest, 3.11)	2m 20s
Make SDist	25s
Install from SDist and Test	2m 46s
coverage	1s
tests_check	2s
	1h 1m 24s

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