Bump chisel3 from `5bec54e5` to `63f25ac4` (#300)

Bumps [chisel3](https://github.com/freechipsproject/chisel3) from `5bec54e5` to `63f25ac4`.
- [Release notes](https://github.com/freechipsproject/chisel3/releases)
- [Commits](https://github.com/freechipsproject/chisel3/compare/5bec54e535dca53c9347caddb0b395c4651a0919...63f25ac4b4d7c9bd530ff1875ad38d835a82e051

)

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

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