test

Add clean up logic to .exit() method. #3533

Job	Run time
crds_contexts / retrieve latest CRDS contexts	5s
check / Load tox environments	7s
data / path	1s
data / webbpsf_path	1s
check / check-dependencies (ubuntu-latest)	1m 59s
data / download and cache WebbPSF data	0s
data / retrieve latest data cache key	2s
test / Load tox environments	7s
test / py310-oldestdeps-webbpsf-cov (ubuntu-latest)	19m 23s
test / py310-webbpsf-nolegacypath (ubuntu-latest)	14m 40s
test / py311-ddtrace-webbpsf (ubuntu-latest)	15m 49s
test / py311-ddtrace-webbpsf (macos-latest)	28m 50s
test / py311-webbpsf-cov (ubuntu-latest)	18m 38s
test / py312-webbpsf (ubuntu-latest)	15m 28s
	1h 55m 10s

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