Chore: humans.txt - add Colin Murray (#44358)

## 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 my name to the humans.txt list!

## What is the current behavior?

Currently, my name is not on the list of employees.

## What is the new behavior?

My name is now on the list of employees.

## Additional context

N/A

apps/docs/public/humans.txt

@@ -51,6 +51,7 @@ Chris Martin
 Chris Stockton
 Chris Ward
 Clayton Kast
+Colin Murray
 Colum Ferry
 Craig Cannon
 Cuong Do