[TASK] Deprecate service getters in ModuleTemplate

The ModuleTemplate, mostly used in backend controllers
previously featured the getIconFactory() and getPageRenderer()
methods, which exposed internally used services.

Except for a few places, TYPO3 core did no longer use
this getters, since it only hides the dependency to the
corresponding services. Therefore, the getters are
now deprecated. Controllers, relying on the services
have to inject them explicitly.

Resolves: #95235
Releases: master
Change-Id: I92f9546bdfd71f7439e6724af12faefe796182fb
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/71099


Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>