9 backports to do

main	13.4	12.4
Merged #92240 [TASK] Update copyright year in README.md and INSTALL.md Author Benni Mack Updated 01/02/26, 17:56 Affected Files 2 Patchsets 2 Reviews 3 Verifies 3	Review is missing.	Review is missing.
Merged #92187 [TASK] Unify ViewHelper arguments naming Author Simon Praetorius Updated 01/15/26, 12:43 Affected Files 2 Patchsets 4 Reviews 6 Verifies 7	Review is missing.
Merged #92848 [TASK] Add workspace language synchronization DataScenario tests Author Benni Mack Updated 02/16/26, 07:52 Affected Files 54 Patchsets 3 Reviews 4 Verifies 5	Review is missing.
Merged #93657 [BUGFIX] Introduce `PackageSetup` to unify extension setup Author Helmut Hummel Updated 04/16/26, 07:25 Affected Files 7 Patchsets 9 Reviews 4 Verifies 5	#93689 [BUGFIX] Introduce `PackageSetup` to unify extension setup 13.4 Author Helmut Hummel Updated 04/16/26, 11:51 Affected Files 7 Patchsets 1 Reviews 2 Verifies
Merged #89244 [BUGFIX] Autowire `LoggerInterface` for `inject*()` methods Author Helmut Hummel Updated 04/19/26, 15:13 Affected Files 19 Patchsets 14 Reviews 4 Verifies 4	Review is missing.
Merged #92362 [BUGFIX] Adapt IRRE/files toggle switch for invertStateDisplay Author Benjamin Franzke Updated 04/23/26, 14:07 Affected Files 3 Patchsets 7 Reviews 4 Verifies 4	Merged #93817 [BUGFIX] Adapt IRRE/files toggle switch for invertStateDisplay 13.4 Author Benjamin Franzke Updated 04/23/26, 14:07 Affected Files 5 Patchsets 2 Reviews 2 Verifies 2
Merged #93826 [TASK] Clarify package cache identifier generation test Author Helmut Hummel Updated 04/24/26, 06:21 Affected Files 1 Patchsets 2 Reviews 6 Verifies 7	Merged #93835 [TASK] Clarify package cache identifier generation test 13.4 Author Helmut Hummel Updated 04/24/26, 12:07 Affected Files 1 Patchsets 2 Reviews 2 Verifies 2
Merged #92627 [TASK] Update to typo3-documentation/render-guides 0.37 Author Garvin Hicking Updated 04/27/26, 07:07 Affected Files 1 Patchsets 8 Reviews 3 Verifies 3	Merged #93842 [TASK] Update to typo3-documentation/render-guides 0.37 13.4 Author Garvin Hicking Updated 04/27/26, 07:07 Affected Files 1 Patchsets 2 Reviews 2 Verifies 2
Merged #93849 [DOCS] Correct $view in Breaking-96812 ReST Author Garvin Hicking Updated 04/27/26, 13:44 Affected Files 1 Patchsets 3 Reviews 4 Verifies 4	Merged #93851 [DOCS] Correct $view in Breaking-96812 ReST 13.4 Author Garvin Hicking Updated 04/27/26, 13:44 Affected Files 1 Patchsets 2 Reviews 2 Verifies 2