[Snyk] Security upgrade react-scripts from 3.4.3 to 4.0.0

[teeohhem]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - examples/react-example/package.json - examples/react-example/package-lock.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **661/1000**
**Why?** Recently disclosed, Has a fix available, CVSS 7.5 | Prototype Pollution
[SNYK-JS-LOADERUTILS-3043105](https://snyk.io/vuln/SNYK-JS-LOADERUTILS-3043105) | Yes | No Known Exploit (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: react-scripts

The new version differs by 125 commits.

• ed95893 Publish
• 88ca4f6 Prepare 4.0.0 release
• d23d615 Update react dom in error overlay
• 95265c3 Update CHANGELOG
• 523b416 Add link to Open Collective (#9864)
• af616ab Update CHANGELOG
• 014ca01 Prepare 4.0.0 release
• 2b1161b Pass JSX runtime setting to Babel preset in Jest config (#9865)
• f2aef41 Prepare 4.0.0 alpha release
• 4bc639c Upgrade to React 17 (#9863)
• d61347d Use new JSX setting with TypeScript 4.1.0 (#9734)
• e63de79 New JSX Transform opt out (#9861)
• fe785b2 feat: Update all dependencies (#9857)
• 85ab02b feat: remove unused React imports (#9853)
• 329f392 feat: Update ESLint dependencies (#9856)
• 10fa972 feat(eslint-config-react-app): Add jest & testing-library rules (#8963)
• ed919b1 Make eslint-plugin-jest an optional peerDependency (#9670)
• 0a93e32 Fix refreshOverlayInterop module scope error (#9805)
• 7965594 Bump resolve-url-loader version (#9841)
• b1f8536 Add 3.4.4 to the changelog
• d07b7d0 Replace deprecated eslint-loader with eslint-webpack-plugin (#9751)
• 6f3e32e Upgrade Docusaurus to latest version (#9728)
• 1f2d387 fix: resolve new JSX runtime issues (#9788)
• 6a51dcd Add AVIF image support (#9611)

See the full diff

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