feat(postgres): extend v17 hardcode to all system components

Add explicit PostgreSQL 17.7 image to Harbor, SeaweedFS, and Keycloak
databases to ensure consistent version across all system components.

Signed-off-by: IvanHunters <xorokhotnikov@gmail.com>
(cherry picked from commit 620c8fb3c0)

packages/system/harbor/templates/database.yaml

@@ -5,6 +5,7 @@ metadata:
   name: {{ .Values.harbor.fullnameOverride }}-db
 spec:
   instances: {{ .Values.db.replicas }}
+  imageName: ghcr.io/cloudnative-pg/postgresql:17.7
   storage:
     size: {{ .Values.db.size }}
     {{- with .Values.db.storageClass }}

packages/system/keycloak/templates/db.yaml

@@ -4,6 +4,7 @@ metadata:
   name: keycloak-db
 spec:
   instances: 2
+  imageName: ghcr.io/cloudnative-pg/postgresql:17.7
   storage:
     size: 20Gi
   {{- if .Values._cluster.scheduling }}

packages/system/seaweedfs/templates/database.yaml

@@ -5,6 +5,7 @@ metadata:
   name: seaweedfs-db
 spec:
   instances: {{ .Values.db.replicas }}
+  imageName: ghcr.io/cloudnative-pg/postgresql:17.7
   storage:
     size: {{ .Values.db.size }}
     {{- with .Values.db.storageClass }}