[BUGFIX] Fix /date|time|int/ regex in backend search

Several parts of the core use the regular expression /date|time|int/ to
test, if an 'eval' TCA configuration of a field contains one of these
evaluation strings. This regex would however match any other string that
contains one of those words. This patch fixes this behaviour by matching
only the exact words.

Resolves: #40347
Releases: master, 9.5
Change-Id: I2af1e3bf5b5cc4056f0e3875645c549a01e6dbd0
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/61885


Tested-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Benni Mack <benni@typo3.org>