refactor(pr-title-check): PR title validation regex patterns

[RomuDeuxfois]

No description provided.

[Filigran-Automation]

🤖 [AI-generated]

Hey @RomuDeuxfois! 👋 Thanks a lot for opening PR #25 — really appreciate you improving the pr-title-check action! 🙏

I just had a quick look and noticed the description is currently empty. A few lines would really help reviewers understand the change faster. I haven't touched anything in your PR — just a gentle, optional suggestion:

Area	What could help	Suggestion
Description	The body is empty	A short summary of what the regex change does and why (what was wrong before, what it fixes/improves)
Linked issue	No linked issue reference	Add a Closes #<issue> line — the conventions ask every PR to be linked to an issue
Verification	No test/validation notes	A line on how you validated the new patterns (e.g. example titles that now pass/fail)

💡 If helpful, the contribution conventions walk through what to include.

No rush at all — thanks again for contributing! 🚀