[BUGFIX] Add checkDataSubmission hook to extension scanner

This one slipped through in https://review.typo3.org/c/59217/
Also add it to the deprecation .rst file.

Releases: master, 9.5
Resolves: #87229
Related: #86279
Change-Id: Idc5a3d0cc05906938e134fd2b6cea367324a773a
Reviewed-on: https://review.typo3.org/59224
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>