Bump stylus-loader from 7.1.3 to 8.1.0

Bumps [stylus-loader](https://github.com/webpack-contrib/stylus-loader) from 7.1.3 to 8.1.0.
- [Release notes](https://github.com/webpack-contrib/stylus-loader/releases)
- [Changelog](https://github.com/webpack-contrib/stylus-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/stylus-loader@v7.1.3...v8.1.0)

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

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

package.json

@@ -92,7 +92,7 @@
     "sinon-chai": "~3.7.0",
     "style-loader": "~3.3.3",
     "stylus": "~0.62.0",
-    "stylus-loader": "~7.1.3",
+    "stylus-loader": "~8.1.0",
     "url": "~0.11.3",
     "util": "~0.12.5",
     "webpack": "~5.89.0",