[TASK] Use hash_equals for timing-safe comparison of hash-values

To prevent timing-attacks on hash-comparions it is advised
to use hash_equals.

Resolves: #83329
Releases: master, 8.7
Change-Id: I7539ed27538d7d81767bfce582d568cff09d1610
Reviewed-on: https://review.typo3.org/55074


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>
Reviewed-by: Stephan Großberndt <stephan@grossberndt.de>
Reviewed-by: Helmut Hummel <typo3@helhum.io>
Tested-by: Helmut Hummel <typo3@helhum.io>