feat!: use external-dns.alpha.kubernetes.io/target annotation filter in external-dns

Signed-off-by: Devin Buhl <devin@buhl.casa>

kubernetes/apps/default/echo-server/app/helmrelease.yaml

@@ -57,7 +57,6 @@ spec:
         ingressClassName: nginx
         annotations:
           external-dns.alpha.kubernetes.io/target: "ipv4.${SECRET_DOMAIN}"
-          external-dns.home.arpa/enabled: "true"
           hajimari.io/icon: video-input-antenna
         hosts:
           - host: &host "{{ .Release.Name }}.${SECRET_DOMAIN}"