Bump deps/lexy-vdf from 0537805 to a947d3d

Bumps [deps/lexy-vdf](https://github.com/OpenVicProject/lexy-vdf) from `0537805` to `a947d3d`.
- [Commits](OpenVicProject/lexy-vdf@0537805...a947d3d)

---
updated-dependencies:
- dependency-name: deps/lexy-vdf
  dependency-version: a947d3db2745c767b8a0f2f2acbb14c497b28a7e
  dependency-type: direct:production
...

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

Author: dependabot[bot]