Update dependency sass to v1.86.3

Author: renovate[bot]

package-lock.json

@@ -62,7 +62,7 @@
     "jest-junit": "^16.0.0",
     "prettier": "3.5.3",
     "react-collapse-pane": "^3.0.1",
-    "sass": "1.83.4",
+    "sass": "1.86.3",
     "sass-loader": "14.2.1",
     "source-map-loader": "5.0.0",
     "style-loader": "^4.0.0",