feat: added @forwardemail to providers (closes #11491)

[titanism]

☕️ Reasoning

Added @forwardemail per discussion in https://github.com/nextauthjs/next-auth/issues/11491.

🧢 Checklist

• [x] Documentation
• [x] Tests
• [x] Ready to be merged

🎫 Affected issues

Fixes: https://github.com/nextauthjs/next-auth/issues/11491

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