[TMP][WiP] IBX-8470: Upgraded codebase to Symfony 6#196

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ViniTou wants to merge 3 commits intomainfrom ibx-8470-symfony-6

+28-44

Commits on Dec 4, 2024

[TMP] Added temporary symfony6 ibexa branches
ViniTou
committed

Commits on Dec 6, 2024

IBX-8570 : Bump symfony dependencies
ViniTou
committed

Commits on Dec 16, 2024

IBX-8570 : Fixed phpstan issues that showed up after upgrade to symfony 6
ViniTou
committed