feat: schema: create relation to cubicweb-rq RqTask in schema for ImportProcess

cubicweb_rodolf/schema.py

@@ -60,6 +60,6 @@
 class ImportProcess(WorkflowableEntityType):
     import_recipe = SubjectRelation("ImportRecipe", cardinality="1*")
     import_procedure = SubjectRelation("ImportProcedure", cardinality="1*")
-    log = File()
+    rq_task = SubjectRelation("RqTask", cardinality="11", inlined=True)
     has_output_dataset = File()
     import_report = File()