fix(docs): use /docs prefix for Supabase Auth migration links in data…

[dexsnake]

Description

The two supabase migration guide links in the callouts on the /docs/migrations/database/supabase page were missing the /docs prefix.

Checklist

• My code follows the code style of this project.
• I have performed a self-review of my code.
• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation, if necessary.
• I have added tests that prove my fix is effective or my feature works.
• New and existing tests pass locally with my changes.

[vercel]

@dexsnake is attempting to deploy a commit to the Vercel Team on Vercel.

A member of the Team first needs to authorize it.