Bump chisel3 from `c11eead2` to `f1955680` (#346)

Bumps [chisel3](https://github.com/freechipsproject/chisel3) from `c11eead2` to `f1955680`.
- [Release notes](https://github.com/freechipsproject/chisel3/releases)
- [Commits](https://github.com/freechipsproject/chisel3/compare/c11eead29545799baf8c57e8c1b8b7351b98a258...f19556801137091fa79a6d79395985474527b72d

)

---
updated-dependencies:
- dependency-name: chisel3
  dependency-type: direct:production
...

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