Bump chisel3 from `88ab494f` to `87adb45b` (#169)

Bumps [chisel3](https://github.com/freechipsproject/chisel3) from `88ab494f` to `87adb45b`.
- [Release notes](https://github.com/freechipsproject/chisel3/releases)
- [Commits](https://github.com/freechipsproject/chisel3/compare/88ab494ffebe2ccdb53255c1718f79d110e28810...87adb45bfd22c73236c6e723a84a38aa86af28a3

)

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

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