fix: valid username in codeowners (#303)

<!--
Please read and fill out this form before submitting your PR.

Please make sure you have reviewed our contributors guide before
submitting your
first PR.
-->

## Overview

<!-- 
Please provide an explanation of the PR, including the appropriate
context,
background, goal, and rationale. If there is an issue with this
information,
please provide a tl;dr and link the issue. 
-->


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

## Summary by CodeRabbit

- **Chores**
	- Updated the list of primary repository maintainers.

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

.github/CODEOWNERS

@@ -4,4 +4,4 @@
 # most precedence.
 
 # Primary repo maintainers
-* @adlerjohn @rachi-id
+* @adlerjohn @rach-id