chore: Add Warwick to humans.txt (#45571)

## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES/NO

## What kind of change does this PR introduce?

Bug fix, feature, docs update, ...

## What is the current behavior?

Please link any relevant issues here.

## What is the new behavior?

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## Additional context

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<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **Chores**
  * Updated team roster information.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

apps/docs/public/humans.txt

@@ -260,6 +260,7 @@ Tyler Shukert
 TzeYiing L
 Utkarash Singh
 Victor Farazdagi
+Warwick Mitchell
 Wen Bo Xie
 Yorvi Arias
 Yuliya Marinova