Update css-loader from 0.28.7 to 0.28.8 in packages/react-scripts

Author: dependencies-bot

packages/react-scripts/package.json

@@ -35,7 +35,7 @@
     "autoprefixer": "7.2.4",
     "case-sensitive-paths-webpack-plugin": "2.1.1",
     "chalk": "2.3.0",
-    "css-loader": "0.28.7",
+    "css-loader": "0.28.8",
     "dotenv": "4.0.0",
     "extract-text-webpack-plugin": "3.0.2",
     "file-loader": "1.1.6",