Test

Pants ci: Run self-check tests w/ venv generated by pants #1593

Job	Run time
Unit Tests Shard 0/4 (pants runs: pytest) - Python 3.8	5m 14s
Pants Plugins Tests (pants runs: pytest) - Python 3.9	4m 14s
Unit Tests Shard 1/4 (pants runs: pytest) - Python 3.8	5m 48s
Integration Tests (Full Cluster)- Python 3.8	13m 40s
Unit Tests Shard 2/4 (pants runs: pytest) - Python 3.8	5m 26s
Integration Tests (Full Cluster)- Python 3.9	7m 1s
Unit Tests Shard 3/4 (pants runs: pytest) - Python 3.8	5m 33s
Integration Tests (pants runs: pytest) - Python 3.8	5m 4s
Unit Tests Shard 0/4 (pants runs: pytest) - Python 3.9	5m 6s
Integration Tests (pants runs: pytest) - Python 3.9	5m 4s
Unit Tests Shard 1/4 (pants runs: pytest) - Python 3.9	5m 50s
Pack Tests (pants runs: pytest) - Python 3.8	3m 14s
Unit Tests Shard 2/4 (pants runs: pytest) - Python 3.9	5m 27s
Pack Tests (pants runs: pytest) - Python 3.9	3m 29s
Self-Check - Python 3.8	9m 11s
Unit Tests Shard 3/4 (pants runs: pytest) - Python 3.9	5m 44s
Self-Check - Python 3.9	9m 5s
Set Merge OK (Tests)	1s
Merge OK (Tests)	1s
	1h 44m 12s

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