⬆️ Bump react-scripts from 3.4.3 to 4.0.3

Bumps [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts) from 3.4.3 to 4.0.3.
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/master/CHANGELOG-3.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/react-scripts@4.0.3/packages/react-scripts)

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

Author: dependabot-preview[bot]

package.json

@@ -43,7 +43,7 @@
     "@babel/runtime": "^7.11.2",
     "@types/react": "^16.9.49",
     "react": "^16.13.1",
-    "react-scripts": "^3.4.3",
+    "react-scripts": "^4.0.3",
     "rollup": "^2.28.2",
     "rollup-plugin-babel": "^4.4.0",
     "rollup-plugin-commonjs": "^10.1.0",