Update community files (#423)

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

Author: knative-automation

OWNERS_ALIASES

@@ -139,6 +139,9 @@ aliases:
   - dprotaso
   net-gateway-api-approvers:
   - dprotaso
+  net-gateway-api-reviewers:
+  - dprotaso
+  - kahirokunn
   net-istio-approvers:
   - skonto
   net-kourier-approvers: