Bump shell-quote and react-scripts

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

Updates `shell-quote` from 1.6.1 to 1.7.3
- [Release notes](https://github.com/substack/node-shell-quote/releases)
- [Changelog](https://github.com/substack/node-shell-quote/blob/master/CHANGELOG.md)
- [Commits](https://github.com/substack/node-shell-quote/compare/1.6.1...1.7.3)

Updates `react-scripts` from 2.1.8 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/react-scripts@5.0.1/packages/react-scripts)

---
updated-dependencies:
- dependency-name: shell-quote
  dependency-type: indirect
- dependency-name: react-scripts
  dependency-type: direct:development
...

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Author: dependabot[bot]