**Build scan:**
https://gradle-enterprise.elastic.co/s/p5lp5uc42gpcu/tests/:modules:data-streams:internalClusterTest/org.elasticsearch.datastreams.DataStreamIT/testGetDataStream

**Reproduction line:**
```
./gradlew ':modules:data-streams:internalClusterTest' --tests "org.elasticsearch.datastreams.DataStreamIT.testGetDataStream" -Dtests.seed=2E01668E169440D7 -Dbuild.snapshot=false -Dtests.jvm.argline="-Dbuild.snapshot=false" -Dtests.locale=de-CH -Dtests.timezone=America/North_Dakota/Center -Druntime.java=19
```

**Applicable branches:**
main

**Reproduces locally?:**
Yes

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.datastreams.DataStreamIT&tests.test=testGetDataStream

**Failure excerpt:**
```
java.lang.AssertionError: 
Expected: is <{
  "data_retention" : "146448103625734ms"
}>
     but: was null

  at __randomizedtesting.SeedInfo.seed([2E01668E169440D7:E1F01CC50A5BA920]:0)
  at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18)
  at org.junit.Assert.assertThat(Assert.java:956)
  at org.junit.Assert.assertThat(Assert.java:923)
  at org.elasticsearch.datastreams.DataStreamIT.testGetDataStream(DataStreamIT.java:1304)
  at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
  at java.lang.reflect.Method.invoke(Method.java:578)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:48)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:843)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:490)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:390)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:850)
  at java.lang.Thread.run(Thread.java:1589)

```
modules/data-streams/src/internalClusterTest/java/org/elasticsearch/datastreams/DataStreamIT.java
@Override
    protected Collection<Class<? extends Plugin>> nodePlugins() {
        return List.of(DataStreamsPlugin.class, MockTransportService.TestPlugin.class);
    }
    public void testBasicScenario() throws Exception {
        List<String> backingIndices = new ArrayList<>(4);
        putComposableIndexTemplate("id1", List.of("metrics-foo*"));
        CreateDataStreamAction.Request createDataStreamRequest = new CreateDataStreamAction.Request("metrics-foo");
        client().execute(CreateDataStreamAction.INSTANCE, createDataStreamRequest).get();
        putComposableIndexTemplate("id2", List.of("metrics-bar*"));
        createDataStreamRequest = new CreateDataStreamAction.Request("metrics-bar");
        client().execute(CreateDataStreamAction.INSTANCE, createDataStreamRequest).get();
        GetDataStreamAction.Request getDataStreamRequest = new GetDataStreamAction.Request(new String[] { "*" });
        GetDataStreamAction.Response getDataStreamResponse = client().execute(GetDataStreamAction.INSTANCE, getDataStreamRequest)
            .actionGet();
        getDataStreamResponse.getDataStreams().sort(Comparator.comparing(dataStreamInfo -> dataStreamInfo.getDataStream().getName()));
        assertThat(getDataStreamResponse.getDataStreams().size(), equalTo(2));
        DataStream barDataStream = getDataStreamResponse.getDataStreams().get(0).getDataStream();
        assertThat(barDataStream.getName(), equalTo("metrics-bar"));
        assertThat(barDataStream.getTimeStampField().getName(), equalTo("@timestamp"));
        assertThat(barDataStream.getIndices().size(), equalTo(1));
        assertThat(barDataStream.getIndices().get(0).getName(), backingIndexEqualTo("metrics-bar", 1));
        DataStream fooDataStream = getDataStreamResponse.getDataStreams().get(1).getDataStream();