feat: update replicas.mirror.gpkg.io/proxy-registry-k8s-io/external-dns/external-dns to v0.20.0 #minor

Author: public-glueops-renovatebot[bot]

values.yaml

@@ -275,7 +275,7 @@ container_images:
       image:
         registry: replicas.mirror.gpkg.io/proxy-registry-k8s-io
         repository: external-dns/external-dns
-        tag: v0.17.0@sha256:85eba2727b410c8f8093d641a4b1a29671878db94d525a70a4108d10ba8eef5f
+        tag: v0.20.0@sha256:ddc7f4212ed09a21024deb1f470a05240837712e74e4b9f6d1f2632ff10672e7
 
   app_backup_and_exports:
     vault_backup_validator: