chore(deps): update dependency stylelint to v15

Author: renovate[bot]

package.json

@@ -157,7 +157,7 @@
     "sass": "^1.51.0",
     "semver": "^7.3.5",
     "simple-git-hooks": "^2.8.0",
-    "stylelint": "^14.0.0",
+    "stylelint": "^15.0.0",
     "stylelint-config-standard": "^29.0.0",
     "stylus": "^0.59.0",
     "svelte": "^3.46.1",