Labels added for project maintenance

[cavasinf]

Hey @kevinpapst,
I'll now discuss from here (Discussions) to avoid polluting issues.

I've just added the new labels for the project.
It's based on what uses Symfony team, I think it works pretty well for my projects.

Tell me what you think about it.

[kevinpapst]

Looks good, thank you! I haven't setup much, because I did not expect any users at this point. And because I am really busy with paid projects right now... so thank you for stepping in!