### 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
);
                    INDEX_SHARD_SNAPSHOTS_FORMAT.write(
                        updatedBlobStoreIndexShardSnapshots,
                        shardContainer,
                        indexGeneration.toBlobNamePart(),
                        compress,
                        serializationParams
                    );
                    snapshotStatus.addProcessedFiles(filesInShardMetadataCount, filesInShardMetadataSize);
                } catch (IOException e) {
                    throw new IndexShardSnapshotFailedException(
                        shardId,
                        "Failed to write shard level snapshot metadata  ["
                            + snapshotId
                            + "] to ["
                            + INDEX_SHARD_SNAPSHOTS_FORMAT.blobName(indexGeneration.toBlobNamePart())
                            + "]",
                        e
                    );
                }
                afterWriteSnapBlob = () -> {};
            } else {
                // 
                // 
                // 
                final long newGen = Long.parseLong(fileListGeneration.toBlobNamePart()) + 1;
                indexGeneration = new ShardGeneration(newGen);
                // 
                final List<String> blobsToDelete = blobs.stream().filter(blob -> blob.startsWith(SNAPSHOT_INDEX_PREFIX)).toList();
                assert blobsToDelete.stream()