Bump firrtl from `fe5a56e` to `2bfecd9` (#192)

Bumps [firrtl](https://github.com/freechipsproject/firrtl) from `fe5a56e` to `2bfecd9`.
- [Release notes](https://github.com/freechipsproject/firrtl/releases)
- [Commits](https://github.com/freechipsproject/firrtl/compare/fe5a56e80d96d306e1bdab8dd05fc1567214907b...2bfecd99427744dee0d968e546a67180360cb9b1

)

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

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