Fix symfony/deprecation-contracts package for Symfony 6 compatibility

[rguennichi]

For Symfony 6.0.x compatibility

- ruflin/elastica[7.1.2, ..., 7.1.3] require symfony/deprecation-contracts ^2.2 -> found symfony/deprecation-contracts[v2.2.0, v2.4.0, v2.4.1, v2.5.0] but the package is fixed to v3.0.0 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.

[ruflin]

Could you add an entry to the changelog?

[helios-ag]

hi @thePanz or @ruflin can you tag version, please?

[thePanz]

@helios-ag yes, why not :)
→ #2054

[helios-ag]

@thePanz thanks!