build(deps): bump third_party/yosys from `463f710` to `9cb0456`
build(deps): bump third_party/yosys from `463f710` to `9cb0456`

Bumps [third_party/yosys](https://github.com/YosysHQ/yosys) from `463f710` to `9cb0456`.
- [Release notes](https://github.com/YosysHQ/yosys/releases)
- [Commits](https://github.com/YosysHQ/yosys/compare/463f7100665b38ca346f3919a65ff7626c24c91c...9cb0456b6f9fa86240a747bab9780a28001b1a02)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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