Some more earlier failures with the same issue (all in Windows builds):
https://gradle-enterprise.elastic.co/s/ic3vf76vlpiho
https://gradle-enterprise.elastic.co/s/7nsuvadgg5bbm
https://gradle-enterprise.elastic.co/s/7kcrezoswrgdg

**Build scan:**
https://gradle-enterprise.elastic.co/s/whgmtqrtovpgu/tests/:server:internalClusterTest/org.elasticsearch.reservedstate.service.FileSettingsServiceIT/testErrorSaved

**Reproduction line:**
`gradlew ':server:internalClusterTest' --tests "org.elasticsearch.reservedstate.service.FileSettingsServiceIT.testErrorSaved" -Dtests.seed=762F971779043BEB -Dtests.locale=es-BO -Dtests.timezone=Africa/Luanda -Druntime.java=18`

**Applicable branches:**
main

**Reproduces locally?:**
Didn't try

**Failure history:**
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.reservedstate.service.FileSettingsServiceIT&tests.test=testErrorSaved

**Failure excerpt:**
```
org.elasticsearch.cluster.metadata.ProcessClusterEventTimeoutException: failed to process cluster event (delete_repository [*]) within 30s

  at __randomizedtesting.SeedInfo.seed([762F971779043BEB:C5DE1806AEE40E21]:0)
  at org.elasticsearch.cluster.service.MasterService$Batcher.lambda$onTimeout$1(MasterService.java:165)
  at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:825)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
  at java.lang.Thread.run(Thread.java:833)

```
server/src/test/java/org/elasticsearch/cluster/metadata/ReservedStateMetadataTests.java
private static ReservedStateMetadata createRandom(boolean addHandlers, boolean addErrors) {
        List<ReservedStateHandlerMetadata> handlers = randomList(
            0,
            10,
            () -> new ReservedStateHandlerMetadata(randomAlphaOfLength(5), randomSet(1, 5, () -> randomAlphaOfLength(6)))
        );
        List<ReservedStateErrorMetadata> errors = randomList(
            0,
            10,
            () -> new ReservedStateErrorMetadata(
                1L,
                randomFrom(ReservedStateErrorMetadata.ErrorKind.values()),
                randomList(1, 5, () -> randomAlphaOfLength(10))
            )
        );
        ReservedStateMetadata.Builder builder = ReservedStateMetadata.builder(randomAlphaOfLength(7));
        if (addHandlers) {
            for (var handlerMeta : handlers) {
                builder.putHandler(handlerMeta);
            }
        }
        if (addErrors) {
            for (var errorMeta : errors) {
                builder.errorMetadata(errorMeta);
            }
        }
        return builder.build();
    }
}