[BUGFIX] Prevent disabled page cache access

A broken boolean toggle introduced with #99282
prevents page cache hits in FE under various
conditions.

Resolves: #99857
Related: #99282
Releases: main
Change-Id: I49066f10bb27c872ebfa9ebce52d76f9cd46f05c
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77727


Tested-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Jochen <rothjochen@gmail.com>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Christoph Lehmann <christoph.lehmann@networkteam.com>