Bump arrstack Sonarr/Radarr/Prowlarr images to -unkin5

Deploys the S3 TLS-trust fix (leaf-only Ceph RGW certificate presentation)
so backups and MediaCover uploads to S3 succeed on all replicas.

- sonarr: v5.0.0-unkin4 -> v5.0.0-unkin5
- radarr: v6.4.2-unkin4 -> v6.4.2-unkin5
- prowlarr: v2.6.2-unkin4 -> v2.6.2-unkin5

apps/base/arrstack/prowlarr/deployment.yaml

@@ -64,7 +64,7 @@ spec:
               memory: 64Mi
       containers:
         - name: prowlarr
-          image: artifactapi.k8s.syd1.au.unkin.net/docker-internal/prowlarr:v2.6.2-unkin4
+          image: artifactapi.k8s.syd1.au.unkin.net/docker-internal/prowlarr:v2.6.2-unkin5
           imagePullPolicy: IfNotPresent
           command:
             - /app/Prowlarr

apps/base/arrstack/radarr/deployment.yaml

@@ -64,7 +64,7 @@ spec:
               memory: 64Mi
       containers:
         - name: radarr
-          image: artifactapi.k8s.syd1.au.unkin.net/docker-internal/radarr:v6.4.2-unkin4
+          image: artifactapi.k8s.syd1.au.unkin.net/docker-internal/radarr:v6.4.2-unkin5
           imagePullPolicy: IfNotPresent
           command:
             - /app/Radarr

apps/base/arrstack/sonarr/deployment.yaml

@@ -64,7 +64,7 @@ spec:
               memory: 64Mi
       containers:
         - name: sonarr
-          image: artifactapi.k8s.syd1.au.unkin.net/docker-internal/sonarr:v5.0.0-unkin4
+          image: artifactapi.k8s.syd1.au.unkin.net/docker-internal/sonarr:v5.0.0-unkin5
           imagePullPolicy: IfNotPresent
           command:
             - /app/Sonarr