Update Nextcloud.

docker-compose.yml

@@ -102,7 +102,7 @@ services:
           --user "$$NEXTCLOUD_ADMIN_USER:$$NEXTCLOUD_ADMIN_PASSWORD"
           http://localhost/ocs/v2.php/apps/serverinfo/api/v1/info
           || exit 1
-    image: registry.hub.docker.com/library/nextcloud:28.0.3-apache
+    image: registry.hub.docker.com/library/nextcloud:28.0.4-apache
     restart: always
     volumes:
       - nextcloud:/var/www/html