SearchServiceTests.testIsParallelCollectionSupportedForResults fails intermittently

```
12:37:10 org.elasticsearch.search.SearchServiceTests > testIsParallelCollectionSupportedForResults FAILED
12:37:10     java.lang.AssertionError
12:37:10         at __randomizedtesting.SeedInfo.seed([4140C168DE8FB0BB:771A78D5E4B36180]:0)
12:37:10         at org.junit.Assert.fail(Assert.java:86)
12:37:10         at org.junit.Assert.assertTrue(Assert.java:41)
12:37:10         at org.junit.Assert.assertFalse(Assert.java:64)
12:37:10         at org.junit.Assert.assertFalse(Assert.java:74)
12:37:10         at org.elasticsearch.search.SearchServiceTests.testIsParallelCollectionSupportedForResults(SearchServiceTests.java:2096)
```

```
./gradlew ':server:test' --tests "org.elasticsearch.search.SearchServiceTests.testIsParallelCollectionSupportedForResults" -Dtests.seed=4140C168DE8FB0BB -Dtests.locale=es-SV -Dtests.timezone=Africa/Banjul -Druntime.java=20
```
server/src/test/java/org/elasticsearch/search/SearchServiceTests.java
),
            indexService.getIndexSettings().getSettings()
        );
        assertEquals(1, service.getActiveContexts());
        service.beforeIndexShardCreated(
            TestShardRouting.newShardRouting(
                new ShardId(indexService.index(), 0),
                randomAlphaOfLength(5),
                randomBoolean(),
                ShardRoutingState.INITIALIZING
            ),
            indexService.getIndexSettings().getSettings()
        );
        assertEquals(0, service.getActiveContexts());
    }
    public void testTimeout() throws IOException {
        createIndex("index");
        final SearchService service = getInstanceFromNode(SearchService.class);
        final IndicesService indicesService = getInstanceFromNode(IndicesService.class);
        final IndexService indexService = indicesService.indexServiceSafe(resolveIndex("index"));
        final IndexShard indexShard = indexService.getShard(0);
        SearchRequest searchRequest = new SearchRequest().allowPartialSearchResults(true);
        final ShardSearchRequest requestWithDefaultTimeout = new ShardSearchRequest(
            OriginalIndices.NONE,
            searchRequest,
            indexShard.shardId(),
            0,
            1,
            AliasFilter.EMPTY,
            1.0f,