Update docker.io/library/nextcloud Docker tag to v33

mon-system/monitoring.yaml

@@ -529,7 +529,7 @@ spec:
         runAsGroup: 472
       containers:
         - name: grafana
-          image: grafana/grafana:13.0.2
+          image: grafana/grafana:12.4.4
           ports:
             - containerPort: 3000
               name: http

nextcloud-system/nextcloud.yaml

@@ -395,7 +395,7 @@ spec:
     spec:
       containers:
         - name: nextcloud
-          image: docker.io/library/nextcloud:32.0.10-apache
+          image: docker.io/library/nextcloud:33.0.4-apache
           imagePullPolicy: IfNotPresent
           env:
             - name: SMTP_HOST