chore(package): update css-loader to version 0.28.3

package.json

@@ -32,7 +32,7 @@
     "babel-preset-react": "^6.22.0",
     "classnames": "2.2.5",
     "copy-webpack-plugin": "4.0.1",
-    "css-loader": "0.28.1",
+    "css-loader": "0.28.3",
     "eslint": "^3.16.1",
     "eslint-config-scratch": "^3.0.0",
     "eslint-plugin-react": "^7.0.1",