Adjust bwc for ES|QL partial failures from remote (elastic#125279)

Relates elastic#124929

Author: dnhatn

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

@@ -149,6 +149,7 @@ static TransportVersion def(int id) {
     public static final TransportVersion INFERENCE_CONTEXT_8_X = def(8_841_0_08);
     public static final TransportVersion ML_INFERENCE_DEEPSEEK_8_19 = def(8_841_0_09);
     public static final TransportVersion ESQL_SERIALIZE_BLOCK_TYPE_CODE_8_19 = def(8_841_0_10);
+    public static final TransportVersion ESQL_FAILURE_FROM_REMOTE_8_19 = def(8_841_0_11);
     public static final TransportVersion INITIAL_ELASTICSEARCH_9_0 = def(9_000_0_00);
     public static final TransportVersion REMOVE_SNAPSHOT_FAILURES_90 = def(9_000_0_01);
     public static final TransportVersion TRANSPORT_STATS_HANDLING_TIME_REQUIRED_90 = def(9_000_0_02);

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/plugin/ComputeResponse.java

@@ -77,7 +77,8 @@ final class ComputeResponse extends TransportResponse {
             this.skippedShards = 0;
             this.failedShards = 0;
         }
-        if (in.getTransportVersion().onOrAfter(TransportVersions.ESQL_FAILURE_FROM_REMOTE)) {
+        if (in.getTransportVersion().onOrAfter(TransportVersions.ESQL_FAILURE_FROM_REMOTE)
+            || in.getTransportVersion().isPatchFrom(TransportVersions.ESQL_FAILURE_FROM_REMOTE_8_19)) {
             this.failures = in.readCollectionAsImmutableList(ShardSearchFailure::readShardSearchFailure);
         } else {
             this.failures = List.of();
@@ -101,7 +102,8 @@ public void writeTo(StreamOutput out) throws IOException {
             out.writeVInt(skippedShards);
             out.writeVInt(failedShards);
         }
-        if (out.getTransportVersion().onOrAfter(TransportVersions.ESQL_FAILURE_FROM_REMOTE)) {
+        if (out.getTransportVersion().onOrAfter(TransportVersions.ESQL_FAILURE_FROM_REMOTE)
+            || out.getTransportVersion().isPatchFrom(TransportVersions.ESQL_FAILURE_FROM_REMOTE_8_19)) {
             out.writeCollection(failures, (o, v) -> v.writeTo(o));
         }
     }