[Manually backport 2.x] Add @BionIT as a maintainer (#6162)

* Add @BionIT as a maintainer

Signed-off-by: Flyingliuhub <33105471+flyingliuhub@users.noreply.github.com>

* update CHANGELOG.md for 2.x too

Signed-off-by: Flyingliuhub <33105471+flyingliuhub@users.noreply.github.com>

---------

Signed-off-by: Flyingliuhub <33105471+flyingliuhub@users.noreply.github.com>
Co-authored-by: Lu Yu <nluyu@amazon.com>

.github/CODEOWNERS

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

CHANGELOG.md

@@ -115,6 +115,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Add @SuZhou-Joe as a maintainer ([#5594](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5594))
 - Move @seanneumann to emeritus maintainer ([#5634](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5634))
 - Remove `ui-select` dev dependency ([#5660](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5660))
+- Add @BionIT as a maintainer ([#5988](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5988))
 
 ### 🪛 Refactoring
 

MAINTAINERS.md

@@ -22,7 +22,8 @@ This document contains a list of maintainers in this repo. See [opensearch-proje
 | 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      |
-| Yulong Ruan               | [ruanyl](https://github.com/ruanyl)         | Amazon      |
+| Yulong Ruan               | [ruanyl](https://github.com/ruanyl)                 | Amazon      |
+| Lu Yu                     | [BionIT](https://github.com/BionIT)                 | Amazon      |
 
 ## Emeritus