Updated node-sass due to CVE-2020-24025

package.json

@@ -7,7 +7,7 @@
     "@babel/cli": "^7.12.8",
     "@babel/core": "^7.12.9",
     "@babel/preset-react": "^7.12.7",
-    "node-sass": "^4.14.1"
+    "node-sass": ">=7.0.0"
   },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",