fixed naming inconsistency

Author: petra-dv

schema/2.0/model/cyclonedx-blueprint-2.0.schema.json

@@ -130,7 +130,7 @@
           "description": "Key permissions, capabilities, or duties the actor holds"
         },
         "trustZone": {
-          "$ref": "cyclonedx-common-2.0.schema.json#/$defs/refType",
+          "$ref": "#/$defs/trustZoneRef",
           "description": "Reference to the trust zone where the actor resides"
         },
         "properties": {