Nightly unit tests, linux #590

Job	Run time
Nightly 3.8 git-test-automl	17m 8s
Nightly 3.8 git-test-modelunderstanding	10m 12s
Nightly 3.8 git-test-other	10m 21s
Nightly 3.8 git-test-parallel	4m 29s
Nightly 3.8 git-test-prophet	6m 16s
Nightly 3.9 git-test-automl	17m 28s
Nightly 3.9 git-test-modelunderstanding	10m 13s
Nightly 3.9 git-test-other	9m 32s
Nightly 3.9 git-test-parallel	4m 23s
Nightly 3.9 git-test-prophet	6m 16s
	1h 36m 18s

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