chore(deps): update dependency gulp-sass to v6

Author: renovate[bot]

package.json

@@ -176,7 +176,7 @@
     "gulp-postcss": "^10.0.0",
     "gulp-rename": "^2.0.0",
     "gulp-replace": "^1.1.4",
-    "gulp-sass": "^5.1.0",
+    "gulp-sass": "^6.0.0",
     "happy-dom": "^14.12.3",
     "highlight.js": "^11.9.0",
     "husky": "^9.0.11",