Update ui-test deps

Author: martinRenou

ui-tests/package.json

@@ -11,12 +11,12 @@
   },
   "author": "ipycanvas",
   "license": "Apache-2.0",
+  "dependencies": {
+    "@jupyterlab/galata": "^5.0.0",
+    "klaw-sync": "^6.0.0",
+    "rimraf": "^3.0.2"
+  },
   "devDependencies": {
-    "@jupyterlab/galata": "^5.0.1",
     "@playwright/test": "^1.32.0"
-  },
-  "dependencies": {
-    "@types/klaw-sync": "^6.0.1",
-    "klaw-sync": "^6.0.0"
   }
 }