Add akolarkunnu as maintainer

Signed-off-by: rithin-pullela-aws <rithinp@amazon.com>

Author: rithinpullela

.github/CODEOWNERS

@@ -1 +1 @@
-*   @b4sjoo @dhrubo-os @mingshl @jngz-es @model-collapse @rbhavna @ylwu-amzn @zane-neo @Zhangxunmt @austintlee @HenryL27 @sam-herman @xinyual @pyek-bot @rithin-pullela-aws
+*   @b4sjoo @dhrubo-os @mingshl @jngz-es @model-collapse @rbhavna @ylwu-amzn @zane-neo @Zhangxunmt @austintlee @HenryL27 @sam-herman @xinyual @pyek-bot @rithin-pullela-aws @akolarkunnu

MAINTAINERS.md

@@ -22,6 +22,7 @@ This document contains a list of maintainers in this repo. See [opensearch-proje
 | Austin Lee           | [austintlee](https://github.com/austintlee)         | Aryn      |
 | Henry Lindeman       | [HenryL27](https://github.com/HenryL27)             | Aryn      |
 | Samuel Herman        | [samuel-oci](https://github.com/sam-herman/)        | Oracle    |
+| Abdul Muneer Kolarkunnu | [akolarkunnu](https://github.com/akolarkunnu)    | NetApp    |
 
 ## Emeritus