Update dependency sass-loader to v12.1.0

Author: renovate-bot

package-lock.json

@@ -29,7 +29,7 @@
     "react-router-dom": "5.2.0",
     "react-router-hash-link": "2.4.3",
     "rimraf": "3.0.2",
-    "sass-loader": "12.0.0",
+    "sass-loader": "12.1.0",
     "source-map-loader": "3.0.0",
     "style-loader": "2.0.0",
     "ts-loader": "9.2.3",