Nightly unit tests, linux #571

Job	Run time
Nightly 3.8 git-test-automl	17m 36s
Nightly 3.8 git-test-modelunderstanding	10m 16s
Nightly 3.8 git-test-other	9m 13s
Nightly 3.8 git-test-parallel	4m 31s
Nightly 3.8 git-test-prophet	6m 21s
Nightly 3.9 git-test-automl	16m 57s
Nightly 3.9 git-test-modelunderstanding	10m 20s
Nightly 3.9 git-test-other	9m 22s
Nightly 3.9 git-test-parallel	4m 34s
Nightly 3.9 git-test-prophet	6m 14s
	1h 35m 24s

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