feat: add in rule for number (#44)

[FACON-Nicolas]

🔗 Linked issue

#44

❓ Type of change

• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

Resolves #44

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly. (not yet, but I'll do it if the pull request is merged)

[RomainLanz]

Thanks!

[RomainLanz]

Can you do a PR for the documentation?

[FACON-Nicolas]

Yes, of course, I do it

[thetutlage]

Fantastic contribution @FACON-Nicolas . Can you please also add the inRule to the list of rules on the Schema class. Precisely here. https://github.com/vinejs/vine/blob/develop/src/schema/number/main.ts#L36