Bump css-loader from 5.1.3 to 5.2.0

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 5.1.3 to 5.2.0.
- [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@v5.1.3...v5.2.0)

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

Author: dependabot[bot]

package-lock.json

@@ -34,7 +34,7 @@
     "chart.js": "2.9.4",
     "chartjs-plugin-datalabels": "0.7.0",
     "core-js": "3.9.1",
-    "css-loader": "5.1.3",
+    "css-loader": "5.2.0",
     "datatables.net-dt": "1.10.24",
     "eslint": "6.8.0",
     "eslint-plugin-vue": "7.7.0",