Update registry.k8s.io/external-dns/external-dns Docker tag to v0.19.0 (main) (#8513)

Update registry.k8s.io/external-dns/external-dns Docker tag to v0.19.0

| datasource | package                                   | from    | to      |
| ---------- | ----------------------------------------- | ------- | ------- |
| docker     | registry.k8s.io/external-dns/external-dns | v0.14.2 | v0.19.0 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

examples/custom-resources/external-dns/external-dns-route53.yaml

@@ -50,7 +50,7 @@ spec:
       serviceAccountName: external-dns
       containers:
       - name: external-dns
-        image: registry.k8s.io/external-dns/external-dns:v0.14.2
+        image: registry.k8s.io/external-dns/external-dns:v0.19.0
         args:
         - --source=service
         - --source=ingress

tests/data/virtual-server-external-dns/external-dns.yaml

@@ -62,7 +62,7 @@ spec:
       serviceAccountName: external-dns
       containers:
       - name: external-dns
-        image: registry.k8s.io/external-dns/external-dns:v0.14.2
+        image: registry.k8s.io/external-dns/external-dns:v0.19.0
         args:
         - --source=crd
         - --crd-source-apiversion=externaldns.nginx.org/v1