don't warn about deprecations in tests for old-api #904

Job	Run time
test (ubuntu-latest, 2.7, 1.61)	6m 38s
test (ubuntu-latest, 2.7, stable)	3m 19s
test (ubuntu-latest, 3.0, 1.61)	6m 35s
test (ubuntu-latest, 3.0, stable)	3m 27s
test (ubuntu-latest, 3.1, 1.61)	6m 24s
test (ubuntu-latest, 3.1, stable)	3m 19s
test (ubuntu-latest, 3.2, 1.61)	6m 25s
test (ubuntu-latest, 3.2, stable)	3m 11s
test (ubuntu-latest, 3.3, 1.61)	6m 18s
test (ubuntu-latest, 3.3, stable)	3m 19s
test (ubuntu-latest, head, 1.61)	5m 38s
test (ubuntu-latest, head, stable)	2m 37s
test (macos-latest, 2.7, 1.61)	7m 55s
test (macos-latest, 2.7, stable)	4m 34s
test (macos-latest, 3.0, 1.61)	8m 58s
test (macos-latest, 3.0, stable)	6m 49s
test (macos-latest, 3.1, 1.61)	7m 57s
test (macos-latest, 3.1, stable)	7m 5s
test (macos-latest, 3.2, 1.61)	12m 14s
test (macos-latest, 3.2, stable)	4m 17s
test (macos-latest, 3.3, 1.61)	10m 42s
test (macos-latest, 3.3, stable)	4m 46s
test (macos-latest, head, 1.61)	11m 38s
test (macos-latest, head, stable)	3m 4s
test (windows-latest, 2.7, 1.61)	12m 45s
test (windows-latest, 2.7, stable)	7m 29s
test (windows-latest, 3.0, 1.61)	11m 29s
test (windows-latest, 3.0, stable)	8m 37s
test (windows-latest, 3.1, 1.61)	13m 7s
test (windows-latest, 3.1, stable)	8m 32s
test (windows-latest, 3.2, 1.61)	12m 25s
test (windows-latest, 3.2, stable)	10m 16s
	3h 51m 49s

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