chore(deps): update helm release external-dns to v6.28.6

[renovate]

This PR contains the following updates:

Package	Update	Change
external-dns (source)	patch	6.28.5 -> 6.28.6

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[github-actions]

--- . HelmRelease: dns/external-dns Deployment: dns/external-dns

+++ . HelmRelease: dns/external-dns Deployment: dns/external-dns

@@ -35,13 +35,13 @@

               topologyKey: kubernetes.io/hostname
             weight: 1
         nodeAffinity: null
       serviceAccountName: external-dns
       containers:
       - name: external-dns
-        image: docker.io/bitnami/external-dns:0.14.0-debian-11-r1
+        image: docker.io/bitnami/external-dns:0.14.0-debian-11-r2
         imagePullPolicy: IfNotPresent
         args:
         - --metrics-address=:7979
         - --log-level=info
         - --log-format=text
         - --policy=sync

[github-actions]

--- . Kustomization: flux-system/flux-system HelmRelease: dns/external-dns

+++ . Kustomization: flux-system/flux-system HelmRelease: dns/external-dns

@@ -6,13 +6,13 @@

   namespace: dns
 spec:
   interval: 1h
   chart:
     spec:
       chart: external-dns
-      version: 6.28.5
+      version: 6.28.6
       sourceRef:
         kind: HelmRepository
         name: external-dns
         namespace: dns
       interval: 1h
   values: