[BUGFIX] Avoid empty cache identifiers

Currently it is possible to add an invalid cache configuration with
empty identifiers. This change avoids this behavior by checking the
indentifiers while changing the cache configuration at the
CacheManager.

Resolves: #91959
Resolves: #91773
Releases: master, 10.4
Change-Id: Icfb25ab52418da166582dba4bca389250325097b
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/65229


Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Daniel Haupt <mail@danielhaupt.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Daniel Haupt <mail@danielhaupt.de>
Reviewed-by: Benni Mack <benni@typo3.org>