test

Add common resample code to stcal. #2235

Job	Run time
check / Load tox environments	6s
test / Load tox environments	4s
test_downstream / Load tox environments	5s
test / py311-oldestdeps-cov-xdist (ubuntu-latest)	2m 45s
test / py311-xdist (ubuntu-latest)	1m 51s
test / py312-xdist (ubuntu-latest)	1m 59s
test / py313-cov-xdist (ubuntu-latest)	3m 6s
test / py313-xdist (macos-latest)	2m 21s
check / check-style (ubuntu-latest)	43s
check / check-types (ubuntu-latest)	1m 32s
check / check-build (ubuntu-latest)	1m 3s
test_downstream / py312-jwst-cov-xdist (ubuntu-latest)	33m 38s
test_downstream / py312-romancal-cov-xdist (ubuntu-latest)	5m 5s
	54m 18s

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