Limit ubuntu version to 22.04 for python 3.7. #37

Job	Run time
Extra_tests (py38-tf2.13, ubuntu-latest, 18, 1.16.3, 1.16.1, False)	9m 22s
Test_max_py_with_latest_tf	9m 33s
Extra_tests (py38-tf2.13, ubuntu-latest, 15, 1.16.3, 1.16.1, False)	9m 25s
Extra_tests (py38-tf2.13, windows-2022, 18, 1.16.3, 1.16.1, False)	11m 39s
Extra_tests (py38-tf2.13, windows-2022, 15, 1.16.3, 1.16.1, False)	11m 56s
Test_min_py_with_min_tf	9m 9s
Extra_tests (py39-tf2.15, ubuntu-latest, 18, 1.16.3, 1.16.1, False)	9m 19s
Extra_tests (py39-tf2.15, ubuntu-latest, 15, 1.16.3, 1.16.1, False)	9m 14s
Extra_tests (py39-tf2.15, windows-2022, 18, 1.16.3, 1.16.1, False)	12m 27s
Extra_tests (py39-tf2.15, windows-2022, 15, 1.16.3, 1.16.1, False)	11m 48s
Extra_tests (py37-tf1.15, ubuntu-22.04, 15, 1.14.1, 1.14.1, True, 1.15.5, 3.7)	3m 17s
Publish Tests Results to Github	9s
	1h 47m 18s

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