build(deps-dev): bump stylus from 0.54.8 to 0.59.0

Bumps [stylus](https://github.com/stylus/stylus) from 0.54.8 to 0.59.0.
- [Release notes](https://github.com/stylus/stylus/releases)
- [Changelog](https://github.com/stylus/stylus/blob/dev/Changelog.md)
- [Commits](stylus/stylus@0.54.8...0.59.0)

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

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

package.json

@@ -84,7 +84,7 @@
     "sass": "^1.42.1",
     "sass-loader": "^10.2.0",
     "sleep-promise": "^9.1.0",
-    "stylus": "^0.54.7",
+    "stylus": "^0.59.0",
     "stylus-loader": "^3.0.2",
     "vue-cli-plugin-vuetify": "^2.4.5",
     "vue-cli-plugin-webpack-bundle-analyzer": "~4.0.0",