chore(deps): update devdependency stylus-loader to v8 (#244)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -93,7 +93,7 @@
     "sass": "^1.62.1",
     "sass-loader": "^13.3.1",
     "stylus": "^0.59.0",
-    "stylus-loader": "^7.1.2",
+    "stylus-loader": "^8.1.1",
     "typescript": "^5.1.3",
     "vitest": "3.2.4"
   },