### CI Link

https://gradle-enterprise.elastic.co/s/ou2sap2dhy3q2/tests/:server:internalClusterTest/org.elasticsearch.snapshots.SharedClusterSnapshotRestoreIT/testDataFileFailureDuringSnapshot

### Repro line

./gradlew ':server:internalClusterTest' --tests "org.elasticsearch.snapshots.SharedClusterSnapshotRestoreIT.testDataFileFailureDuringSnapshot" -Dtests.seed=37B64CEE1DCEACEB -Dtests.locale=uk -Dtests.timezone=Africa/Lusaka -Druntime.java=17

### Does it reproduce?

Yes

### Applicable branches

main

### Failure history

_No response_

### Failure excerpt

```
java.lang.Exception: Test abandoned because suite timeout was reached. 
    at __randomizedtesting.SeedInfo.seed([37B64CEE1DCEACEB]:0)
```
server/src/main/java/org/elasticsearch/repositories/blobstore/BlobStoreRepository.java
final RepositoryData cached;
        if (bestEftConsistency) {
            genToLoad = latestKnownRepoGen.updateAndGet(known -> Math.max(known, repositoryStateId));
            cached = null;
        } else {
            genToLoad = latestKnownRepoGen.get();
            cached = latestKnownRepositoryData.get();
        }
        if (genToLoad > generation) {
            // 
            // 
            // 
            logger.debug(
                "Determined repository's generation from its contents to ["
                    + generation
                    + "] but "
                    + " generation is at least ["
                    + genToLoad
                    + "]"
            );
        }
        if (genToLoad != repositoryStateId) {
            throw new RepositoryException(
                metadata.name(),
                "con modification of the index-N file, expected  generation ["
                    + repositoryStateId
                    + "], actual  generation ["
                    + genToLoad
                    + "]"
            );