Bump chisel3 from `f26df23b` to `4e8f362c` (#276)

Bumps [chisel3](https://github.com/freechipsproject/chisel3) from `f26df23b` to `4e8f362c`.
- [Release notes](https://github.com/freechipsproject/chisel3/releases)
- [Commits](https://github.com/freechipsproject/chisel3/compare/f26df23bbe0ae9b7162ed70369f24b01d75a1493...4e8f362c399f85b93bce4175562670242d8411b1

)

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

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