Merge pull request #35003 from jeremyrickard/jeremyrickard/update-release-managers

releng: Update release managers page for new RMA

Author: k8s-ci-robot

content/en/releases/release-managers.md

@@ -133,7 +133,9 @@ referred to as Release Manager shadows. They are responsible for:
 GitHub Mentions: @kubernetes/release-engineering
 
 - Arnaud Meukam ([@ameukam](https://github.com/ameukam))
+- Jeremy Rickard ([@jeremyrickard](https://github.com/jeremyrickard))
 - Jim Angel ([@jimangel](https://github.com/jimangel))
+- Joseph Sandoval ([@jrsapi](https://github.com/jrsapi))
 - Joyce Kung ([@thejoycekung](https://github.com/thejoycekung))
 - Max Körbächer ([@mkorbi](https://github.com/mkorbi))
 - Seth McCombs ([@sethmccombs](https://github.com/sethmccombs))