Test linkml #3221 URIRef data conversion in nmdc-schema

[turbomam]

Context

linkml/linkml#3221 (merged as 5a648fd, included in linkml >= 1.10.0) changed rdflib_dumper to emit URIRef nodes instead of "..."^^xsd:anyURI typed literals for uri and uriorcurie values.

Task

Test nmdc-schema RDF data dumps against linkml >= 1.10.0 to verify that:

• NMDC instance data still serializes correctly to RDF/Turtle
• No downstream consumers (e.g. NMDC Runtime, ingest pipelines) expect URI values as typed literals
• Round-tripping (dump → load) still works for URI-typed slots

How to test

uv add linkml@>=1.10.0
# regenerate RDF outputs and compare against current snapshots

References

• Emit URIRef for xsd:anyURI values in RDF serialization linkml/linkml#3221
• Network-dependent tests fail due to upstream linkml-model changes linkml/linkml#3214
• Using wrong XSD type for URIorCURIE linkml/linkml#2213