build(deps-dev): bump flatted from 3.2.5 to 3.4.4 (#11)

Bumps [flatted](https://github.com/WebReflection/flatted) from 3.2.5 to 3.4.4.
- [Commits](WebReflection/flatted@v3.2.5...v3.4.4)

---
updated-dependencies:
- dependency-name: flatted
  dependency-version: 3.4.4
  dependency-type: indirect
...

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