Update dependency react-scripts to v3.4.3

Author: renovate-bot

package.json

@@ -12,7 +12,7 @@
     "ast-metadata-inferer": "^0.4.0",
     "react": "^16.13.1",
     "react-dom": "^16.13.1",
-    "react-scripts": "3.4.1",
+    "react-scripts": "3.4.3",
     "@handsontable/react": "^3.1.3",
     "gh-pages": "^3.1.0",
     "handsontable": "^7.4.2"