Bump json5, gulp-babel and testcafe

Bumps [json5](https://github.com/json5/json5) to 2.2.3 and updates ancestor dependencies [json5](https://github.com/json5/json5), [gulp-babel](https://github.com/babel/gulp-babel) and [testcafe](https://github.com/DevExpress/testcafe). These dependencies need to be updated together.


Updates `json5` from 0.5.1 to 2.2.3
- [Release notes](https://github.com/json5/json5/releases)
- [Changelog](https://github.com/json5/json5/blob/main/CHANGELOG.md)
- [Commits](json5/json5@v0.5.1...v2.2.3)

Updates `gulp-babel` from 6.1.3 to 8.0.0
- [Release notes](https://github.com/babel/gulp-babel/releases)
- [Changelog](https://github.com/babel/gulp-babel/blob/master/CHANGELOG.md)
- [Commits](babel/gulp-babel@v6.1.3...v8.0.0)

Updates `testcafe` from 1.4.3 to 2.6.2
- [Release notes](https://github.com/DevExpress/testcafe/releases)
- [Changelog](https://github.com/DevExpress/testcafe/blob/master/CHANGELOG.md)
- [Commits](DevExpress/testcafe@v1.4.3...v2.6.2)

---
updated-dependencies:
- dependency-name: json5
  dependency-type: indirect
- dependency-name: gulp-babel
  dependency-type: direct:development
- dependency-name: testcafe
  dependency-type: direct:development
...

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Author: dependabot[bot]