build(deps-dev): bump css-loader from 3.2.0 to 3.4.0 (#74)

Author: dependabot-preview[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "babel-loader": "^8.0.6",
     "chromedriver": "^78.0.1",
     "copy-webpack-plugin": "^5.1.1",
-    "css-loader": "^3.2.0",
+    "css-loader": "^3.4.0",
     "eslint": "^6.8.0",
     "eslint-plugin-vue": "^5.2.3",
     "geckodriver": "^1.19.1",