Bump yosys from 6155c59 to 408597b

Bumps [yosys](https://github.com/YosysHQ/yosys) from `6155c59` to `408597b`.
- [Release notes](https://github.com/YosysHQ/yosys/releases)
- [Commits](YosysHQ/yosys@6155c59...408597b)

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

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