Bump chisel3 from `4e8f362c` to `157d5c3e` (#277)

Bumps [chisel3](https://github.com/freechipsproject/chisel3) from `4e8f362c` to `157d5c3e`.
- [Release notes](https://github.com/freechipsproject/chisel3/releases)
- [Commits](https://github.com/freechipsproject/chisel3/compare/4e8f362c399f85b93bce4175562670242d8411b1...157d5c3e37058286539867ca9a33b8bc1c6e43e3

)

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

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