chore(deps): update dependency css-loader to v5.2.7

Author: renovate[bot]

package-lock.json

@@ -30,7 +30,7 @@
     "babel-loader": "8.2.3",
     "bundle-stats-webpack-plugin": "3.2.0",
     "cross-env": "7.0.3",
-    "css-loader": "5.2.6",
+    "css-loader": "5.2.7",
     "file-loader": "6.2.0",
     "file-url": "4.0.0",
     "html-webpack-plugin": "5.5.0",