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
task.snapshot,
                                    repoMeta
                                )
                            );
                        }
                    } catch (Exception e) {
                        taskContext.onFailure(e);
                    }
                }
            }
            shardsUpdateContext.completeWithUpdatedState(snapshotsInProgress);
            if (snapshotsInProgress == initialSnapshots) {
                return state;
            }
            return ClusterState.builder(state).putCustom(SnapshotsInProgress.TYPE, snapshotsInProgress).build();
        }
        private SnapshotsInProgress createSnapshot(
            CreateSnapshotTask createSnapshotTask,
            TaskContext<SnapshotTask> taskContext,
            ClusterState currentState,
            SnapshotsInProgress snapshotsInProgress
        ) {
            final RepositoryData repositoryData = createSnapshotTask.repositoryData;
            final Snapshot snapshot = createSnapshotTask.snapshot;
            final String repositoryName = snapshot.getRepository();
            final String snapshotName = snapshot.getSnapshotId().getName();
            ensureRepositoryExists(repositoryName, currentState);
            final Repository repository = createSnapshotTask.repository;
            ensureSnapshotNameAvailableInRepo(repositoryData, snapshotName, repository);
            ensureSnapshotNameNotRunning(snapshotsInProgress, repositoryName, snapshotName);