fix: upgrade sass from 1.56.1 to 1.81.0

Snyk has created this PR to upgrade sass from 1.56.1 to 1.81.0.

See this package in npm:
sass

See this project in Snyk:
https://app.snyk.io/org/innellea/project/c101d418-7200-4ccc-a855-794b279f671c?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package.json

@@ -23,7 +23,7 @@
     "react-router-dom": "^5.2.0",
     "react-scripts": "4.0.3",
     "react-slick": "0.29.0",
-    "sass": "1.56.1",
+    "sass": "1.81.0",
     "slick-carousel": "1.8.1",
     "styled-components": "5.3.6",
     "web-vitals": "1.1.2"