feat: read unnamed vectors from query responses

Author: bevzzz

src/main/java/io/weaviate/client6/v1/api/collections/query/QueryResponse.java

@@ -132,6 +132,12 @@ static <PropertiesT> WeaviateObject<PropertiesT, Object, ObjectMetadata> unmarsh
         }
       }
       metadataBuilder.vectors(vectors);
+
+      if (metadataResult.getVectorBytes() != null && !metadataResult.getVectorBytes().isEmpty()) {
+        var unnamed = ByteStringUtil.decodeVectorSingle(metadataResult.getVectorBytes());
+        metadataBuilder.vectors(Vectors.of(unnamed));
+      }
+
       metadata = metadataBuilder.build();
     }