Bump third-party/verilator/master from 61c64e4 to 61de46c (#881)

Bumps [third-party/verilator/master](https://github.com/verilator/verilator) from `61c64e4` to `61de46c`.
- [Commits](verilator/verilator@61c64e4...61de46c)

---
updated-dependencies:
- dependency-name: third-party/verilator/master
  dependency-version: 61de46cea2af48cb263ea90bb72f2e105990bb5d
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]