Define distributions on the UI #1563

Job	Run time
Generate test matrix	6s
Test (ubuntu-20.04, 3.11)	1m 56s
Test (ubuntu-20.04, 3.9)	1m 55s
Test (ubuntu-20.04, 3.10)	2m 6s
Test (windows-latest, 3.11)	6m 15s
Test (windows-latest, 3.9)	7m 11s
Test (windows-latest, 3.10)	5m 4s
Test (macos-latest, 3.11)	5m 42s
Test (macos-latest, 3.9)	3m 0s
Test (macos-latest, 3.10)	3m 53s
Test (ubuntu-latest, 3.11)	2m 35s
Test (ubuntu-latest, 3.9)	2m 4s
Test (ubuntu-latest, 3.10)	1m 59s
Installer (ubuntu-20.04, 3.11)	10m 29s
Installer (windows-latest, 3.11)	19m 10s
Installer (macos-latest, 3.11)	30m 46s
Test installer (windows-latest, 3.11)	1m 47s
Test installer (ubuntu-20.04, 3.11)	1m 27s
	1h 47m 25s

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