chore: 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

@@ -111,7 +111,7 @@
     "rollup-plugin-replace": "^2.2.0",
     "rollup-plugin-uglify": "^6.0.4",
     "serve-handler": "^6.1.2",
-    "stylus": "^0.54.5",
+    "stylus": "^0.59.0",
     "vue2": "npm:vue@^2.6.12",
     "vue3": "npm:vue@^3.0.0",
     "xhr-mock": "^2.5.1"