### CI Link

https://gradle-enterprise.elastic.co/s/ym6b3yayxtusy/tests/:x-pack:plugin:async-search:internalClusterTest/org.elasticsearch.xpack.search.AsyncSearchActionIT/testCCSCheckCompatibility

### Repro line

./gradlew ':x-pack:plugin:async-search:internalClusterTest' --tests "org.elasticsearch.xpack.search.AsyncSearchActionIT.testCCSCheckCompatibility"

### Does it reproduce?

Yes

### Applicable branches

main

### Failure history

_No response_

### Failure excerpt

In `AsyncSearchActionIT.testCCSCheckCompatibility` and `TransportTermsEnumActionTests.TransportTermsEnumActionTests` the code assumes that it can send a request that uses the current transport version (see `DummyQueryBuilder` / `VersionedNamedWriteable` ) and that will always be incompatible with the `MINIMUM_CCS_VERSION`

However since the move to `TransportVersion` it is no longer the case that a node on the next node version will be incompatible with the previous node version (which is what `MINIMUM_CCS_VERSION` tracks). In fact, immediately after a version number they will be identical - that is, `TransportVersion.current()` will be the same version as `TransportVersion.MINIMUM_CCS_VERSION`

This causes these tests to fail until the transport version is bumped.

- https://github.com/elastic/elasticsearch/blob/6420924e314c9e154617055f1c91fa9d5f084049/x-pack/plugin/async-search/src/internalClusterTest/java/org/elasticsearch/xpack/search/AsyncSearchActionIT.java#L534
- https://github.com/elastic/elasticsearch/blob/4d3fb8d9938236dd7d6de2cae614fa8a34f66862/server/src/main/java/org/elasticsearch/TransportVersion.java#L224
 
For the test to work within the current assumptions it would need to get a `TransportVersion` that is after `MINIMUM_CCS_VERSION`, but `TransportVersionUtils` doesn't offer a way to create such a version on the fly (it has to already exist).

server/src/test/java/org/elasticsearch/action/search/TransportSearchActionTests.java
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.awaitLatch;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.CoreMatchers.startsWith;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.hamcrest.Matchers.hasSize;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class TransportSearchActionTests extends ESTestCase {
    private final ThreadPool threadPool = new TestThreadPool(getClass().getName());
    @Override
    public void tearDown() throws Exception {
        super.tearDown();
        ThreadPool.terminate(threadPool, 10, TimeUnit.SECONDS);
    }
    private static SearchShardIterator createSearchShardIterator(
        int id,
        Index index,
        OriginalIndices originalIndices,
        String clusterAlias
    ) {
        ShardId shardId = new ShardId(index, id);
        List<ShardRouting> shardRoutings = GroupShardsIteratorTests.randomShardRoutings(shardId);
        return new SearchShardIterator(clusterAlias, shardId, shardRoutings, originalIndices);
    }
    public void testMergeShardsIterators() {
        Index[] indices = new Index[randomIntBetween(1, 10)];
        for (int i = 0; i < indices.length; i++) {