Bump css-loader from 6.7.2 to 6.7.3

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 6.7.2 to 6.7.3.
- [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/v6.7.2...v6.7.3)

---
updated-dependencies:
- dependency-name: css-loader
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -17,7 +17,7 @@
     "chosen-js": "^1.8.7",
     "component-emitter": "^1.3.0",
     "compression-webpack-plugin": "^10.0.0",
-    "css-loader": "^6.7.2",
+    "css-loader": "^6.7.3",
     "css-minimizer-webpack-plugin": "^4.2.2",
     "d3": "^7.7.0",
     "d3-tip": "^0.9.1",