Update community files (#599)

Signed-off-by: Knative Automation <[email protected]>

Author: knative-automation

OWNERS_ALIASES

@@ -123,14 +123,9 @@ aliases:
   - maximilien
   - rhuss
   - zhanggbj
-  kn-plugin-diag-approvers:
-  - cdlliuy
-  - maximilien
   kn-plugin-event-approvers:
   - cardil
   - rhuss
-  kn-plugin-migration-approvers:
-  - maximilien
   kn-plugin-operator-approvers:
   - dsimansk
   - houshengbo
@@ -154,6 +149,9 @@ aliases:
   - christophd
   - rhuss
   knative-admin:
+  - Cali0707
+  - Leo6Leo
+  - ReToCode
   - aliok
   - cardil
   - davidhadas
@@ -168,8 +166,14 @@ aliases:
   - nainaz
   - psschwei
   - salaboy
+  - skonto
   - upodroid
-  knative-release-leads: []
+  knative-release-leads:
+  - Cali0707
+  - Leo6Leo
+  - ReToCode
+  - dsimansk
+  - skonto
   knative-robots:
   - knative-automation
   - knative-prow-releaser-robot