Bump firrtl from `3916559` to `01e567d` (#377)

Bumps [firrtl](https://github.com/freechipsproject/firrtl) from `3916559` to `01e567d`.
- [Release notes](https://github.com/freechipsproject/firrtl/releases)
- [Commits](https://github.com/freechipsproject/firrtl/compare/39165592d9d2a36b319091c9993e742f7091c046...01e567de5d8e50d4bcb784eae45651da71fe6efd

)

---
updated-dependencies:
- dependency-name: firrtl
  dependency-type: direct:production
...

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