chore(deps): update helm release external-dns to v1.16.0 (#160)

Author: renovate[bot]

clusters/_base/addons/external-dns/helm-release.yaml

@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: external-dns
-      version: 1.15.2
+      version: 1.16.0
       sourceRef:
         kind: HelmRepository
         name: external-dns