Add dedicated pvc for backups

cluster/apps/jellystat/jellystat.yml

@@ -33,9 +33,8 @@ spec:
               name: jellystat-secret
               key: password
         volumeMounts:
-        - name: backup
+        - name: postgres-data
           mountPath: /var/lib/postgresql/data
-          subPath: db
       containers:
       - name: jellystat
         image: cyfershepard/jellystat:1.1.6
@@ -59,10 +58,12 @@ spec:
               name: jellystat-secret
               key: jwt
         volumeMounts:
-        - name: backup
+        - name: backups
           mountPath: /app/backend/backup-data
-          subPath: backup
       volumes:
-      - name: backup
+      - name: postgres-data
         persistentVolumeClaim:
           claimName: jellystat-ceph
+      - name: backups
+        persistentVolumeClaim:
+          claimName: jellystat-backups