prep for 3.0 release #2279

Job	Run time
stsci / Load tox environments	8s
asdf / Load tox environments	5s
astropy / Load tox environments	5s
third-party / Load tox environments	6s
asdf / asdf-wcs-schemas (ubuntu-latest)	1m 44s
asdf / asdf-coordinates-schemas (ubuntu-latest)	3m 10s
third-party / weldx (ubuntu-latest)	3m 36s
third-party / sunpy (ubuntu-latest)	3m 2s
third-party / dkist (ubuntu-latest)	3m 51s
astropy / asdf-astropy (ubuntu-latest)	4m 12s
stsci / gwcs (ubuntu-latest)	1m 8s
stsci / jwst (ubuntu-latest)	10m 1s
stsci / stdatamodels (ubuntu-latest)	2m 23s
stsci / stpipe (ubuntu-latest)	45s
stsci / roman_datamodels (ubuntu-latest)	2m 9s
	36m 25s

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