Upgrade npm packages

package.json

@@ -30,7 +30,7 @@
     "copyfiles": "^2.1.0",
     "css-loader": "^2.1.0",
     "eslint": "^5.7.0",
-    "eslint-plugin-jest": "^21.25.0",
+    "eslint-plugin-jest": "^22.2.2",
     "eslint-plugin-react": "^7.11.1",
     "file-loader": "^3.0.1",
     "html-webpack-plugin": "^3.2.0",
@@ -38,7 +38,6 @@
     "sass-loader": "^7.1.0",
     "style-loader": "^0.23.1",
     "webpack": "^4.15.0",
-    "webpack-cli": "^3.0.8",
-    "webpack-dev-server": "^3.1.14"
+    "webpack-cli": "^3.0.8"
   }
 }