test

improve WebbPSF data caching in GitHub CI #2652

Job	Run time
check / Load tox environments	5s
check / Load tox environments	5s
data / set data path	1s
data / set data path	2s
data / retrieve current CRDS context	7s
data / retrieve current CRDS context	4s
data / download and cache WebbPSF data	17s
data / download and cache WebbPSF data	11s
check / check-dependencies (ubuntu-latest)	1m 59s
check / check-dependencies (ubuntu-latest)	2m 20s
check / build-dist (ubuntu-latest)	33s
check / build-dist (ubuntu-latest)	42s
data / combine individual data caches	0s
data / combine individual data caches	7s
test	0s
test / Load tox environments	9s
test / py39-oldestdeps-cov (ubuntu-latest)	13m 8s
test / py39 (ubuntu-latest)	10m 42s
test / py310 (ubuntu-latest)	8m 23s
test / py311-ddtrace (ubuntu-latest)	8m 36s
test / py311-ddtrace (macos-latest)	15m 28s
test / py311-cov (ubuntu-latest)	8m 3s
	1h 11m 2s

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