bump webpack things

Author: jackfranklin

package.json

@@ -12,7 +12,9 @@
     "elm-lint-fix": "elm-format example/ --yes"
   },
   "keywords": [],
-  "files": ["lib/index.js"],
+  "files": [
+    "lib/index.js"
+  ],
   "author": "Team Thread",
   "license": "MIT",
   "prettier": {
@@ -28,8 +30,8 @@
     "core-js": "^2.6.4",
     "elm-format": "^0.8.0",
     "prettier": "1.10.2",
-    "webpack": "^4.17.1",
-    "webpack-cli": "^3.1.0",
-    "webpack-dev-server": "^3.1.7"
+    "webpack": "^4.41.5",
+    "webpack-cli": "^3.3.10",
+    "webpack-dev-server": "^3.10.1"
   }
 }