chore(docs): add Samir Ketema to humans.txt (supabase#44374)

## 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?

Adding myself to humans.txt as I joined the team 🎉 

## What is the current behavior?

## What is the new behavior?

## Additional context

Author: samirketema

apps/docs/public/humans.txt

@@ -204,6 +204,7 @@ Ruan Maia
 Sam Meech-Ward
 Sam Rome
 Sam Rose
+Samir Ketema
 Sana Cordeaux
 Sara Read
 Sean Oliver