8.2
[Form] Offer the canonical timezone identifier when ICU names collide
[Form] Allow `ViolationMapperInterface` injection for `ValidatorExtension` and `FormTypeValidatorExtension`
Make tests compatible with PHPUnit 13.2 and Twig 3.28
CS fixes
Merge branch '6.4' into 7.4
[Form] Fix merging POST params and files when collection entries have mismatched indices
Merge branch '8.0' into 8.1
[Form] Don't re-add deleted collection entries on submit