### 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).

x-pack/plugin/async-search/src/internalClusterTest/java/org/elasticsearch/xpack/search/AsyncSearchActionIT.java
public class AsyncSearchActionIT extends AsyncSearchIntegTestCase {
    private static String indexName;
    private static int numShards;
    private static int numKeywords;
    private static Map<String, AtomicInteger> keywordFreqs;
    private static float maxMetric = Float.NEGATIVE_INFINITY;
    private static float minMetric = Float.POSITIVE_INFINITY;
    @Override
    public void setupSuiteScopeCluster() throws InterruptedException {
        indexName = "test-async";
        numShards = randomIntBetween(1, 20);
        int numDocs = randomIntBetween(100, 1000);
        createIndex(indexName, Settings.builder().put("index.number_of_shards", numShards).build());
        numKeywords = randomIntBetween(50, 100);
        keywordFreqs = new HashMap<>();
        Set<String> keywordSet = new HashSet<>();
        for (int i = 0; i < numKeywords; i++) {
            keywordSet.add(randomAlphaOfLengthBetween(10, 20));
        }
        numKeywords = keywordSet.size();
        String[] keywords = keywordSet.toArray(String[]::new);
        List<IndexRequestBuilder> reqs = new ArrayList<>();