Add Release managers for 1.23 (#1437)

* Add Release managers for 1.23

* Update teams.yaml

order names

* Remove whitespace

Author: thedebugger

org/teams.yaml

@@ -257,6 +257,7 @@ teams:
       - hanxiaop
       - hzxuzhonghu
       - ksubrmnn
+      - mikemorris
       - thedebugger
       - zirain
     repos:
@@ -287,6 +288,12 @@ teams:
         - hzxuzhonghu
         - thedebugger
         - zirain
+      Release Managers - 1.23:
+        description: Release managers for Istio 1.23
+        members:
+        - hzxuzhonghu
+        - mikemorris
+        - thedebugger        
   Repo Admins:
     description: Folks with admin permission on all repos.
     members: