Add Isaac Dawson to humans.txt (#51007)

## Problem

I'm not in humans.txt

## Solution

I should be in humans.txt

## Checklist

Check all before review:

- [X] I have read
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
- [ ] If I wrote a new docs topic or edited an existing topic, I used
the `/write-the-docs` or `/edit-the-docs` skill, which applies the docs
[style
guide](https://github.com/supabase/supabase/tree/master/apps/docs/style-guide)


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

## Summary by CodeRabbit

* **Documentation**
  * Added Isaac Dawson to the team list.

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

apps/docs/public/humans.txt

@@ -139,6 +139,7 @@ Ignacio Dobronich
 Illia Basalaiev
 Inian P
 Iryna Deans
+Isaac Dawson
 Ivan Vasilov
 Jamie Boyd
 Jake Ng