Build(deps): Bump third_party/yosys from 7f2bf31 to 2de9f00

Bumps [third_party/yosys](https://github.com/YosysHQ/yosys) from `7f2bf31` to `2de9f00`.
- [Release notes](https://github.com/YosysHQ/yosys/releases)
- [Commits](YosysHQ/yosys@7f2bf31...2de9f00)

---
updated-dependencies:
- dependency-name: third_party/yosys
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>