Update dependency sass to v1.91.0

Author: renovate[bot]

tools/vf-sass-compilation/package.json

@@ -27,7 +27,7 @@
     "prettier-stylelint": "0.4.2",
     "rollup": "^4.0.0",
     "rollup-plugin-includepaths": "^0.2.4",
-    "sass": "1.85.0",
+    "sass": "1.91.0",
     "stylelint": "^16.0.0",
     "stylelint-order": "^6.0.0",
     "stylelint-scss": "^6.11.1",