Nightly unit tests, linux #558

Job	Run time
Nightly 3.8 git-test-automl	18m 22s
Nightly 3.8 git-test-modelunderstanding	11m 38s
Nightly 3.8 git-test-other	9m 32s
Nightly 3.8 git-test-parallel	5m 14s
Nightly 3.8 git-test-prophet	6m 42s
Nightly 3.9 git-test-automl	17m 55s
Nightly 3.9 git-test-modelunderstanding	11m 0s
Nightly 3.9 git-test-other	10m 35s
Nightly 3.9 git-test-parallel	4m 30s
Nightly 3.9 git-test-prophet	6m 22s
	1h 41m 50s

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