use wider range for apputils

Author: mariobuikhuizen

js/package.json

@@ -55,7 +55,7 @@
   },
   "dependencies": {
     "@jupyter-widgets/base": "^1 || ^2 || ^3 || ^4 || ^6",
-    "@jupyterlab/apputils": "^2 || ^3 || ^4",
+    "@jupyterlab/apputils": "^2 || ^3 || ^4 || ^5 || ^6",
     "@mdi/font": "^7.2.96",
     "core-js": "^3.0.1",
     "jupyter-vue": "^3.0.0-alpha.4",