Update dependency webpack to v5

package.json

@@ -65,7 +65,7 @@
     "mocha-sinon": "2.1.2",
     "nyc": "15.1.0",
     "sinon": "9.2.0",
-    "webpack": "4.44.2",
+    "webpack": "5.10.0",
     "webpack-cli": "3.3.12",
     "webpack-common-shake": "2.1.0",
     "webpack-merge": "5.2.0"