Fix syntax of DOAP

[raboof]

What changes were proposed in this pull request?

I'm having some trouble finding an authoritative reference, but it looks like a release (which is a property) may not contain multiple Versions (which is a node) in RDF/XML. The python rdflib at least doesn't support it, and whatever generates https://projects.apache.org/json/projects/orc.json and https://projects.apache.org/project.html?orc also doesn't seem to process it correctly.

Why are the changes needed?

So infrastructure that uses the information for the DOAP does the right thing.

How was this patch tested?

n/a

Was this patch authored or co-authored using generative AI tooling?

no