Deprecate `AsdfFile.version_map` #2508

Job	Run time
asdf / Load tox environments	6s
stsci / Load tox environments	7s
astropy / Load tox environments	8s
third-party / Load tox environments	7s
asdf / asdf-wcs-schemas (ubuntu-latest)	1m 23s
asdf / asdf-coordinates-schemas (ubuntu-latest)	2m 5s
asdf / asdf-zarr (ubuntu-latest)	35s
asdf / asdf-compression (ubuntu-latest)	31s
third-party / weldx (ubuntu-latest)	2m 30s
astropy / asdf-astropy (ubuntu-latest)	2m 34s
third-party / sunpy (ubuntu-latest)	1m 14s
astropy / specutils (ubuntu-latest)	1m 44s
third-party / dkist (ubuntu-latest)	2m 43s
stsci / astrocut (ubuntu-latest)	2m 48s
stsci / gwcs (ubuntu-latest)	57s
stsci / jwst (ubuntu-latest)	18m 58s
stsci / stdatamodels (ubuntu-latest)	3m 4s
stsci / stpipe (ubuntu-latest)	41s
stsci / roman_datamodels (ubuntu-latest)	1m 25s
	43m 40s

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