Bump flat and codeceptjs (#230)

Bumps [flat](https://github.com/hughsk/flat) to 5.0.2 and updates ancestor dependency [codeceptjs](https://github.com/Codeception/codeceptjs). These dependencies need to be updated together.


Updates `flat` from 4.1.1 to 5.0.2
- [Release notes](https://github.com/hughsk/flat/releases)
- [Commits](hughsk/flat@4.1.1...5.0.2)

Updates `codeceptjs` from 3.3.7 to 3.4.0
- [Release notes](https://github.com/Codeception/codeceptjs/releases)
- [Changelog](https://github.com/codeceptjs/CodeceptJS/blob/3.x/CHANGELOG.md)
- [Commits](codeceptjs/CodeceptJS@3.3.7...3.4.0)

---
updated-dependencies:
- dependency-name: flat
  dependency-type: indirect
- dependency-name: codeceptjs
  dependency-type: direct:development
...

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Author: dependabot[bot]