Correcting tranport version number

Author: jonathan-buttner

server/src/main/java/org/elasticsearch/TransportVersions.java

@@ -162,7 +162,7 @@ static TransportVersion def(int id) {
     public static final TransportVersion AMAZON_BEDROCK_TASK_SETTINGS_8_19 = def(8_841_0_17);
     public static final TransportVersion BATCHED_QUERY_PHASE_VERSION_BACKPORT_8_X = def(8_841_0_19);
     public static final TransportVersion SEARCH_INCREMENTAL_TOP_DOCS_NULL_BACKPORT_8_19 = def(8_841_0_20);
-    public static final TransportVersion ADD_INFERENCE_CUSTOM_MODEL_8_X = def(8_842_0_20);
+    public static final TransportVersion ADD_INFERENCE_CUSTOM_MODEL_8_X = def(8_841_0_21);
     public static final TransportVersion V_9_0_0 = def(9_000_0_09);
     public static final TransportVersion INITIAL_ELASTICSEARCH_9_0_1 = def(9_000_0_10);
     public static final TransportVersion COHERE_BIT_EMBEDDING_TYPE_SUPPORT_ADDED = def(9_001_0_00);