[backend] Fix the ability to add relationship references in CSV mapper(…

…OpenCTI-Platform#7565)

opencti-platform/opencti-graphql/src/database/stix-ref.ts

@@ -1,7 +1,16 @@
 import { schemaRelationsRefDefinition } from '../schema/schema-relationsRef';
+import { STIX_CORE_RELATIONSHIPS } from '../schema/stixCoreRelationship';
+import type { RefAttribute } from '../schema/attribute-definition';
 
 export const schemaRelationsRefTypesMapping = () => {
-  return Array.from(schemaRelationsRefDefinition.relationsRefCacheArray.entries()).map(([key, refs]) => {
+  const relationshipsRefs = new Map<string, RefAttribute[]>();
+  STIX_CORE_RELATIONSHIPS.forEach((relation) => {
+    relationshipsRefs.set(relation, schemaRelationsRefDefinition.getRelationsRef(relation));
+  });
+  return [
+    ...Array.from(relationshipsRefs.entries()),
+    ...Array.from(schemaRelationsRefDefinition.relationsRefCacheArray.entries())
+  ].map(([key, refs]) => {
     return {
       key,
       values: refs.map((ref) => ({