[1.3 Backport] Add @SuZhou-Joe as a maintainer (#5594) (#5599)

Backport PR
#5594

Updates MAINTAINERS.md and .github/CODEOWNERS.

Here are their current merge contributions, total contributions, and issues:
https://github.com/opensearch-project/OpenSearch-Dashboards/pulls?q=is%3Apr+is%3Amerged+author%3Asuzhou-joe+
https://github.com/opensearch-project/OpenSearch-Dashboards/pulls?q=is%3Apr+author%3Asuzhou-joe+
https://github.com/opensearch-project/OpenSearch-Dashboards/issues?q=is%3Aissue+suzhou-joe+is%3Aopen

Signed-off-by: Kawika Avilla <kavilla414@gmail.com>
Signed-off-by: Anan Zhuang <ananzh@amazon.com>
Co-authored-by: Kawika Avilla <kavilla414@gmail.com>
Co-authored-by: Josh Romero <rmerqg@amazon.com>

.github/CODEOWNERS

@@ -1 +1 @@
-*   @ananzh @kavilla @seanneumann @AMoo-Miki @ashwin-pc @joshuarrrr @abbyhu2000 @zengyan-amazon @kristenTian @zhongnansu @manasvinibs @ZilongX @Flyingliuhub @BSFishy
+*   @ananzh @kavilla @seanneumann @AMoo-Miki @ashwin-pc @joshuarrrr @abbyhu2000 @zengyan-amazon @kristenTian @zhongnansu @manasvinibs @ZilongX @Flyingliuhub @BSFishy @curq @bandinib-amzn @SuZhou-Joe

CHANGELOG.md

@@ -19,7 +19,8 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ### 🛠 Maintenance
 
-[Version] Increment version to 1.3.15 ([#5596](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5596))
+- [Version] Increment version to 1.3.15 ([#5596](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5596))
+- Add @SuZhou-Joe as a maintainer. ([#5594](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5594))
 
 ### 🪛 Refactoring
 

MAINTAINERS.md

@@ -20,6 +20,9 @@ This document contains a list of maintainers in this repo. See [opensearch-proje
 | Tao Liu                   | [Flyingliuhub](https://github.com/Flyingliuhub)     | Amazon      |
 | Zilong Xia                | [ZilongX](https://github.com/ZilongX)               | Amazon      |
 | Matt Provost              | [BSFishy](https://github.com/BSFishy)               | Amazon      |
+| Sirazh Gabdullin          | [curq](https://github.com/curq)                     | External contributor |
+| Bandini Bhopi             | [bandinib-amzn](https://github.com/bandinib-amzn)   | Amazon      |
+| Su Zhou                   | [SuZhou-Joe](https://github.com/SuZhou-Joe)         | Amazon      |
 
 ## Emeritus