chore(deps-dev): bump css-loader from 5.0.1 to 5.1.1

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 5.0.1 to 5.1.1.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/css-loader@v5.0.1...v5.1.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "babel-loader": "^8.2.2",
     "clean-webpack-plugin": "^3.0.0",
     "copy-webpack-plugin": "^8.0.0",
-    "css-loader": "^5.0.1",
+    "css-loader": "^5.1.1",
     "eslint": "^7.21.0",
     "eslint-config-standard": "^16.0.2",
     "eslint-plugin-import": "^2.22.1",