Bump firrtl from `0fed407` to `e5eb206` (#196)

Bumps [firrtl](https://github.com/freechipsproject/firrtl) from `0fed407` to `e5eb206`.
- [Release notes](https://github.com/freechipsproject/firrtl/releases)
- [Commits](https://github.com/freechipsproject/firrtl/compare/0fed407cc802a1dfaddb5b99c17ba764892fccfd...e5eb20686baf33728e1d46ea760885474df157db

)

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

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