Bump jsdom and react-scripts in /react-webapp

Bumps [jsdom](https://github.com/jsdom/jsdom) and [react-scripts](https://github.com/facebook/create-react-app/tree/HEAD/packages/react-scripts). These dependencies needed to be updated together.

Updates `jsdom` from 11.12.0 to 16.7.0
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/master/Changelog.md)
- [Commits](jsdom/jsdom@11.12.0...16.7.0)

Updates `react-scripts` from 2.1.0 to 5.0.1
- [Release notes](https://github.com/facebook/create-react-app/releases)
- [Changelog](https://github.com/facebook/create-react-app/blob/main/CHANGELOG-2.x.md)
- [Commits](https://github.com/facebook/create-react-app/commits/[email protected]/packages/react-scripts)

---
updated-dependencies:
- dependency-name: jsdom
  dependency-type: indirect
- dependency-name: react-scripts
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>