Update sssom_schema.yaml (#201)

Author: matentzn

src/sssom_schema/schema/sssom_schema.yaml

@@ -173,7 +173,7 @@ slots:
         description: "From the SKOS primer: A triple skos:narrower (and skos:narrowMatch) asserts that , the object of the triple, is a narrower concept than , the subject of the triple."
       - value: skos:broadMatch
         description: "From the SKOS primer: A triple skos:broader (and skos:broadMatch) asserts that , the object of the triple, is a broader concept than , the subject of the triple."
-      - value: oboInOwl:database_cross_reference
+      - value: oboInOwl:hasDbXref
         description: Two terms are related in some way. The meaning is frequently consistent across a single set of mappings. Note this property is often overloaded even where the terms are of a different nature (e.g. interpro2go)
       - value: rdfs:seeAlso
         description: The subject and the object are associated in some unspecified way. The object IRI often resolves to a resource on the web that provides additional information.