[FEATURE]: Remove PHPStan baseline

[atournayre]

Describe the feature you'd like

Remove PHPStan baseline

Is your feature request related to a problem? Please describe

No response

Describe the solution you'd like

To be compliant with Elegant Objets principles

Additional context

No response

Checklist

• I have searched for existing issues related to this feature request.
• I have checked the project documentation for any relevant information.
• I have discussed this feature with the team.

Additional information

No response