chore: Update sass dependency (#36)

Updates sass to v1.86.1 as part of regular maintenance to ensure dependencies are kept up-to-date.

Author: randombitsUK

package-lock.json

@@ -42,6 +42,6 @@
   "devDependencies": {
     "jest": "29.7.0",
     "prettier": "3.5.3",
-    "sass": "1.86.0"
+    "sass": "1.86.1"
   }
 }