Bump riscv-opcodes from `bb64568` to `3ca60c5`

Bumps [riscv-opcodes](https://github.com/riscv/riscv-opcodes) from `bb64568` to `3ca60c5`.
- [Commits](https://github.com/riscv/riscv-opcodes/compare/bb64568616b364e7103910f5dd363bc9cad1bb0a...3ca60c50f8ea1ea514bcfff58719f670194c1dc8

)

---
updated-dependencies:
- dependency-name: riscv-opcodes
  dependency-type: direct:production
...

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