### 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
}
        {
            String requestClusterAlias = randomAlphaOfLengthBetween(5, 10);
            BiFunction<String, String, Transport.Connection> connectionLookup = TransportSearchAction.buildConnectionLookup(
                requestClusterAlias,
                localNodes,
                remoteNodes,
                nodeToConnection
            );
            Transport.Connection localConnection = connectionLookup.apply(requestClusterAlias, randomAlphaOfLengthBetween(5, 10));
            assertThat(localConnection.getNode().getId(), startsWith("local-"));
        }
    }
    private MockTransportService[] startTransport(
        int numClusters,
        DiscoveryNode[] nodes,
        Map<String, OriginalIndices> remoteIndices,
        Settings.Builder settingsBuilder
    ) {
        MockTransportService[] mockTransportServices = new MockTransportService[numClusters];
        for (int i = 0; i < numClusters; i++) {
            List<DiscoveryNode> knownNodes = new CopyOnWriteArrayList<>();
            MockTransportService remoteSeedTransport = RemoteClusterConnectionTests.startTransport(
                "node_remote" + i,
                knownNodes,
                VersionInformation.CURRENT,
                TransportVersion.current(),
                threadPool
            );
            mockTransportServices[i] = remoteSeedTransport;