Add Daniel Guerra to humans.txt (#48412)

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

YES

## What kind of change does this PR introduce?

Add myself (Daniel Guerra) to `humans.txt` as part of my onboarding.

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

## Summary by CodeRabbit

* **Documentation**
* Added Daniel Guerra to the team information listed in the project’s
public documentation.

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

apps/docs/public/humans.txt

@@ -70,6 +70,7 @@ Colum Ferry
 Craig Cannon
 Cuong Do
 Dane Harrigan
+Daniel Guerra
 Daniel Mitterdorfer
 Daniel Velázquez Lara
 Danny White