### 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
assertNotNull(response.getSearchResponse());
                assertNotNull(response.getSearchResponse().getAggregations());
                assertNotNull(response.getSearchResponse().getAggregations().get("terms"));
                StringTerms terms = response.getSearchResponse().getAggregations().get("terms");
                assertThat(terms.getBuckets().size(), greaterThanOrEqualTo(0));
                assertThat(terms.getBuckets().size(), lessThanOrEqualTo(numKeywords));
                for (InternalTerms.Bucket<?> bucket : terms.getBuckets()) {
                    long count = keywordFreqs.getOrDefault(bucket.getKeyAsString(), new AtomicInteger(0)).get();
                    if (numFailures > 0) {
                        assertThat(bucket.getDocCount(), lessThanOrEqualTo(count));
                    } else {
                        assertThat(bucket.getDocCount(), equalTo(count));
                    }
                }
            }
            deleteAsyncSearch(response.getId());
            ensureTaskRemoval(response.getId());
        }
    }
    public void testRestartAfterCompletion() throws Exception {
        final AsyncSearchResponse initial;
        try (SearchResponseIterator it = assertBlockingIterator(indexName, numShards, new SearchSourceBuilder(), 0, 2)) {
            initial = it.next();
            while (it.hasNext()) {
                it.next();
            }
        }
        ensureTaskCompletion(initial.getId());
        restartTaskNode(initial.getId(), indexName);
        AsyncSearchResponse response = getAsyncSearch(initial.getId());