[TASK] Deprecate PageRepository::setHash and storeHash

The two static methods are sole wrappers for the Caching Framework nowadays
which can simply be dealt with in a custom way.

Use the Caching Framework directly instead!

Resolves: #80524
Releases: master
Change-Id: I8fced0800a2c72705f1a01e0a3d6e52aeaf5daef
Reviewed-on: https://review.typo3.org/52217


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>