feat: added linkedin openid connect driver

[LoicOuth]

🔗 Linked issue

issue #154

❓ 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

Added the LinkedIn OpenID Connect driver to enable users to connect using the OpenID Connect method.
Resolves #154.

📝 Checklist

Pull request documentation : adonisjs/v6-docs#183

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[thetutlage]

Looks perfect to me, except that one import change

[thetutlage]

Thanks 🙂