Transform of vo does not get started due to non-unique VersionIRI

[caufieldjh]

Describe the bug

Attempting to retrieve the latest version of vo fails:

Current VersionIRI for vo: http://purl.obolibrary.org/obo/vo.owl
Current version for vo: July-31--2022
In vo, used this value for version: a date or version info field
Have already transformed vo: http://purl.obolibrary.org/obo/vo.owl - skipping

The new version is fine and we should transform it, but KG-OBO doesn't know what to do about the fact that we already have a graph corresponding to this VersionIRI.

To Reproduce

python run.py --bucket kg-hub-public-data --save_local --force_overwrite --get_only vo

Expected behavior

This may be parsing the IRI (or even the version) incorrectly, so check on that first.
If it's parsing everything correctly then a workaround to create a new IRI may be in order, though only for KG-OBO purposes.

Version

efc2324