Update community files (#3349)

Signed-off-by: Knative Automation <automation@knative.team>

Author: knative-automation

OWNERS_ALIASES

@@ -62,6 +62,7 @@ aliases:
   operations-reviewers:
   - aliok
   - houshengbo
+  - kahirokunn
   - matzew
   operations-wg-leads:
   - houshengbo