A user (on 7.17.7) reported to me a situation where they were attempting to delete a snapshot and would get the log message `deleting snapshots [snapshot-test] from repository [my-snapshots]` but then no further messages at `INFO` or above; enabling some internal logging indicated some low-level timeouts:

```
[DEBUG][com.amazonaws.latency    ] [instance-0123456789] MaxRetriesExceeded=[true], ServiceName=[Amazon S3], ServiceEndpoint=[https://REDACTED/], Exception=[java.net.SocketTimeoutException: Read timed out, java.net.SocketTimeoutException: Read timed out, java.net.SocketTimeoutException: Read timed out, java.net.SocketTimeoutException: Read timed out],...
```

This was enough for the user to go and investigate some performance issues in their repository, but I find the lack of logging concerning. Eventually the cluster state contains no ongoing snapshot deletion, but there is nothing in the logs to indicate that anything didn't work. The deletion API request had already timed out by this point so we can't return an error that way either. I'm opening this issue to make sure we investigate the missing logging.
server/src/main/java/org/elasticsearch/snapshots/SnapshotsService.java
}
            } else {
                updatedEntries.add(entry);
            }
        }
        return changed ? SnapshotDeletionsInProgress.of(updatedEntries) : null;
    }
    private void failSnapshotCompletionListeners(Snapshot snapshot, Exception e) {
        failListenersIgnoringException(endAndGetListenersToResolve(snapshot), e);
        assert repositoryOperations.assertNotQueued(snapshot);
    }
    /**
     * Deletes snapshots from the repository. In-progress snapshots matched by the delete will be aborted before deleting them.
     *
     * @param request         delete snapshot request
     * @param listener        listener
     */
    public void deleteSnapshots(final DeleteSnapshotRequest request, final ActionListener<Void> listener) {
        final String repositoryName = request.repository();
        final String[] snapshotNames = request.snapshots();
        logger.info(
            () -> format("deleting snapshots [%s] from repository [%s]", arrayToCommaDelimitedString(snapshotNames), repositoryName)
        );
        final Repository repository = repositoriesService.repository(repositoryName);
        executeConsistentStateUpdate(repository, repositoryData -> new ClusterStateUpdateTask(request.masterNodeTimeout()) {
            private SnapshotDeletionsInProgress.Entry newDelete = null;
            private boolean reusedExistingDelete = false;
            
            
            private final Collection<Snapshot> completedNoCleanup = new ArrayList<>();