Bump chisel3 from `48203e60` to `8bcdfdac` (#176)

Bumps [chisel3](https://github.com/freechipsproject/chisel3) from `48203e60` to `8bcdfdac`.
- [Release notes](https://github.com/freechipsproject/chisel3/releases)
- [Commits](https://github.com/freechipsproject/chisel3/compare/48203e605538511f012f21629f641e89efd46d0e...8bcdfdaceef1904cb7e53991c1d28e8ea8612a36

)

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

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