chore(deps-dev): bump css-loader from 5.2.5 to 5.2.6

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 5.2.5 to 5.2.6.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/css-loader/compare/v5.2.5...v5.2.6)

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

package.json

@@ -120,7 +120,7 @@
     "chromedriver": "^90.0.1",
     "cors": "^2.8.5",
     "cross-env": "=7.0.3",
-    "css-loader": "=5.2.5",
+    "css-loader": "=5.2.6",
     "cssnano": "=5.0.3",
     "cypress": "^6.7.1",
     "dedent": "^0.7.0",