Update RestStatus to conflict

Author: Max Hniebergall

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/inference/results/ResultUtils.java

@@ -15,7 +15,7 @@ public class ResultUtils {
     public static ElasticsearchStatusException createInvalidChunkedResultException(String expectedResultName, String receivedResultName) {
         return new ElasticsearchStatusException(
             "Received incompatible results. Check that your model_id matches the task_type of this endpoint. Expected chunked output of type [{}] but received [{}].",
-            RestStatus.INTERNAL_SERVER_ERROR,
+            RestStatus.CONFLICT,
             expectedResultName,
             receivedResultName
         );