Update dependency webpack to v5

Author: renovate[bot]

package.json

@@ -98,7 +98,7 @@
     "prettier": "^1.5.2",
     "string-replace-loader": "^2.1.1",
     "temp": "^0.8.3",
-    "webpack": "^2.1.0-beta.25",
+    "webpack": "^5.0.0",
     "yargs": "^6.3.0"
   },
   "resolutions": {