chore(deps): update dependency kubernetes-sigs/external-dns to v1.19.0

Author: renovate[bot]

external-dns/plugindefinition.yaml

@@ -14,4 +14,4 @@ spec:
   helmChart:
     name: external-dns
     repository: https://kubernetes-sigs.github.io/external-dns
-    version: 1.17.0
+    version: 1.19.0