[BUGFIX] Consider Symfony route modifier

Symfony route modifiers like `{!parameter}` were not encapsulated
when preparing TYPO3 specific enhancer data for route processing.
Internal static MD5 hashing is reduced by 4 bits (one character
when hex encoded) to keep route modifier in deflated values.

Resolves: #90149
Releases: master, 9.5
Change-Id: I040e24b2b49d76ad2a67deb9da43d70be4305722
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62994


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