Resolve NEXT_MAJOR comments

[jordisala1991]

Subject

I am targeting this branch, because this is for next major.

Changelog

### Added
- Added `EditableRolesBuilderInterface`.

### Changed
- Changed `__construct()` of `EditableRolesBuilder` to provide `TranslatorInterface`

[VincentLanglet]

Tests need to be updated

• Some private methods were tested
• Some mock were made on final classes

[VincentLanglet]

For the label, I think the major label require to have a Changelog.
So as a hack, we have to use the pedantic label in order to generate the release changelog with the dev kit command.

[jordisala1991]

For the label, I think the major label require to have a Changelog. So as a hack, we have to use the pedantic label in order to generate the release changelog with the dev kit command.

I have added the changelog, had to introduce a new interface.

I didn't touch a metod that should be private because I will be fixing that on another PR. (I noted it on the 5.0 roadmap issue)