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/main/java/org/elasticsearch/reservedstate/service/FileSettingsService.java
var parser = JSON.xContent().createParser(XContentParserConfiguration.EMPTY, bis)
        ) {
            stateService.process(NAMESPACE, parser, (e) -> {
                try {
                    if (e != null) {
                        errorHandler.accept(e);
                    }
                } finally {
                    waitForCompletion.countDown();
                }
            });
        }
        return waitForCompletion;
    }
    /**
     * Holds information about the last known state of the file we watched. We use this
     * class to determine if a file has been changed.
     */
    record FileUpdateState(long timestamp, String path, Object fileKey) {}
    /**
     * Error subclass that is thrown when we encounter a fatal error while applying
     * the operator cluster state at Elasticsearch boot time.
     */
    public static class FileSettingsStartupException extends RuntimeException {
        public FileSettingsStartupException(String message, Throwable t) {
            super(message, t);
        }
    }
}