Nightly upstream testing #993

Job	Run time
Test importing with bare requirements and upstream dev	55s
Test upstream dev (ubuntu-latest, python: 3.8, distributed: false)	8m 47s
Test upstream dev (ubuntu-latest, python: 3.9, distributed: false)	6m 20s
Test upstream dev (ubuntu-latest, python: 3.10, distributed: false)	6m 35s
Test upstream dev (windows-latest, python: 3.8, distributed: false)	14m 54s
Test upstream dev (windows-latest, python: 3.9, distributed: false)	22m 53s
Test upstream dev (windows-latest, python: 3.10, distributed: false)	18m 1s
Test upstream dev (macos-latest, python: 3.8, distributed: false)	24m 16s
Test upstream dev (macos-latest, python: 3.9, distributed: false)	25m 3s
Test upstream dev (macos-latest, python: 3.10, distributed: false)	27m 22s
Test upstream dev (ubuntu-latest, python: 3.8, distributed: true)	6m 41s
Test upstream dev (ubuntu-latest, python: 3.10, distributed: true)	6m 38s
Open issue for upstream dev failures	0s
	2h 48m 25s

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