Deprecate `AsdfFile.version_map` #2510

Job	Run time
asdf / Load tox environments	8s
astropy / Load tox environments	6s
stsci / Load tox environments	6s
third-party / Load tox environments	7s
astropy / asdf-astropy (ubuntu-latest)	2m 29s
astropy / specutils (ubuntu-latest)	1m 37s
third-party / weldx (ubuntu-latest)	2m 39s
third-party / sunpy (ubuntu-latest)	1m 16s
third-party / dkist (ubuntu-latest)	2m 36s
stsci / astrocut (ubuntu-latest)	10m 28s
stsci / gwcs (ubuntu-latest)	1m 2s
stsci / jwst (ubuntu-latest)	22m 47s
stsci / stdatamodels (ubuntu-latest)	3m 4s
stsci / stpipe (ubuntu-latest)	42s
stsci / roman_datamodels (ubuntu-latest)	1m 22s
asdf / asdf-wcs-schemas (ubuntu-latest)	1m 15s
asdf / asdf-coordinates-schemas (ubuntu-latest)	1m 54s
asdf / asdf-zarr (ubuntu-latest)	30s
asdf / asdf-compression (ubuntu-latest)	27s
	54m 35s

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