Update example npm deps (#1184)

Author: blink1073

.github/workflows/python-tests.yml

@@ -179,6 +179,7 @@ jobs:
       - build
       - test_docs
       - test_lint
+      - test_examples
       - test_minimum_versions
       - test_prereleases
       - check_links

examples/simple/package.json

@@ -9,10 +9,8 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "rifraf": "2.0.3",
-    "webpack": "~4.29.6",
-    "webpack-cli": "^3.3.0",
-    "whatwg-fetch": "~2.0.3",
-    "typescript": "3.6.4"
+    "webpack": "^5.72.0",
+    "webpack-cli": "^5.0.0",
+    "typescript": "~4.7.3"
   }
 }