Merge pull request #2135 from mikemorris/patch-1

add Flynn as GAMMA lead, remove Mike Morris

Author: k8s-ci-robot

OWNERS_ALIASES

@@ -15,16 +15,19 @@ aliases:
     - shaneutt
     - youngnick
 
-  gateway-api-mesh-leads:
-    - howardjohn
-    - keithmattix
-    - mikemorris
-
   emeritus-gateway-api-maintainers:
     - danehans
     - hbagdi
     - jpeach
 
+  gateway-api-mesh-leads:
+    - howardjohn
+    - keithmattix
+    - kflynn
+
+  emeritus-gateway-api-mesh-leads:
+    - mikemorris
+
   gateway-api-conformance-reviewers:
     - arkodg
     - LiorLieberman