Update Helm release postgres-cluster to v6

renovate.json

@@ -72,21 +72,20 @@
                 "docker"
             ],
             "matchPackageNames": [
-                "clidey/whodb",
-                "eigenfocus/eigenfocus",
                 "ghcr.io/advplyr/audiobookshelf",
-                "ghcr.io/gethomepage/homepage",
-                "ghcr.io/gitroomhq/postiz-app",
                 "ghcr.io/linuxserver/bazarr",
-                "ghcr.io/linuxserver/code-server",
+                "eigenfocus/eigenfocus",
+                "vectorim/element-web",
+                "ghcr.io/gethomepage/homepage",
                 "ghcr.io/linuxserver/lidarr",
                 "ghcr.io/linuxserver/plex",
+                "ghcr.io/gitroomhq/postiz-app",
                 "ghcr.io/linuxserver/prowlarr",
                 "ghcr.io/linuxserver/radarr",
                 "ghcr.io/linuxserver/sonarr",
                 "ghcr.io/n8n-io/n8n",
-                "kube-prometheus-stack",
+                "clidey/whodb",
-                "vectorim/element-web"
+                "kube-prometheus-stack"
             ],
             "addLabels": [
                 "image",