Merge pull request #132 from rustwasm/dependabot/npm_and_yarn/webpack-4.31.0

Build(deps-dev): Bump webpack from 4.30.0 to 4.31.0

Author: xtuc

package-lock.json

@@ -14,7 +14,7 @@
   "devDependencies": {
     "@wasm-tool/wasm-pack-plugin": "0.2.7",
     "html-webpack-plugin": "^3.2.0",
-    "webpack": "^4.30.0",
+    "webpack": "^4.31.0",
     "webpack-cli": "^3.3.2",
     "webpack-dev-server": "^3.3.1"
   }