Bump css-loader from 6.10.0 to 7.0.0 (#169)

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 6.10.0 to 7.0.0.
- [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@v6.10.0...v7.0.0)

---
updated-dependencies:
- dependency-name: css-loader
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -14,7 +14,7 @@
   "devDependencies": {
     "autoprefixer": "^10.4.13",
     "copy-webpack-plugin": "^12.0.2",
-    "css-loader": "^6.7.3",
+    "css-loader": "^7.0.0",
     "mini-css-extract-plugin": "^2.7.2",
     "postcss-loader": "^8.0.0",
     "resolve-url-loader": "^5.0.0",