Bump chisel3 from `92a00eef` to `12bebb1a` (#191)

Bumps [chisel3](https://github.com/freechipsproject/chisel3) from `92a00eef` to `12bebb1a`.
- [Release notes](https://github.com/freechipsproject/chisel3/releases)
- [Commits](https://github.com/freechipsproject/chisel3/compare/92a00eef14028a0a3ab5c38d5ed45f5e316c2804...12bebb1a21c6e3a424287d5c3800391299cabde9

)

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

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