Bump yosys from e9cd6ca to 0a854cf

Bumps [yosys](https://github.com/YosysHQ/yosys) from `e9cd6ca` to `0a854cf`.
- [Release notes](https://github.com/YosysHQ/yosys/releases)
- [Commits](YosysHQ/yosys@e9cd6ca...0a854cf)

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

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