Bump react-scripts from 3.4.1 to 3.4.3 (#2046)

Bumps [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts) from 3.4.1 to 3.4.3.
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/create-react-app/commits/HEAD/packages/react-scripts)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -38,7 +38,7 @@
     "pwacompat": "2.0.15",
     "react": "16.13.1",
     "react-dom": "16.13.1",
-    "react-scripts": "3.4.1",
+    "react-scripts": "3.4.3",
     "roughjs": "4.3.1",
     "socket.io-client": "2.3.0",
     "typescript": "3.9.7"