Version your procedures from procedure.yaml

The version in your procedure.yaml is now the version recorded with every run. It used to be ignored — runs read pyproject.toml instead, so monorepo procedures recorded no version at all.

• Changed the recorded version to come from procedure.yaml. OpenHTF, pytest and Robot Framework procedures keep using pyproject.toml.
• Made version optional. Procedures without one run normally and are not linked to a version.