Bump css-loader from 6.7.2 to 6.7.3 (#974)

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](webpack-contrib/css-loader@v6.7.2...v6.7.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

package-lock.json

@@ -25,7 +25,7 @@
   },
   "homepage": "https://github.com/rubygems/bundler-site#readme",
   "devDependencies": {
-    "css-loader": "^6.7.2",
+    "css-loader": "^6.7.3",
     "mini-css-extract-plugin": "^2.7.2",
     "prettier": "2.8.1",
     "sass": "^1.56.2",