Add transport version for search load autoscaling (#106377)

Adds a new transport version for search load autoscaling

docs/changelog/106377.yaml

@@ -0,0 +1,5 @@
+pr: 106377
+summary: Add transport version for search load autoscaling
+area: Search
+type: enhancement
+issues: []

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

@@ -154,6 +154,7 @@ public class TransportVersions {
     public static final TransportVersion ML_COMPLETION_INFERENCE_SERVICE_ADDED = def(8_614_00_0);
     public static final TransportVersion ML_INFERENCE_EMBEDDING_BYTE_ADDED = def(8_615_00_0);
     public static final TransportVersion ML_INFERENCE_L2_NORM_SIMILARITY_ADDED = def(8_616_00_0);
+    public static final TransportVersion SEARCH_NODE_LOAD_AUTOSCALING = def(8_617_00_0);
 
     /*
      * STOP! READ THIS FIRST! No, really,