For some reasons when we delete a MergeTree Part in atomic way something may go wrong - and leave the `delete_tmp_*` folder or it's part on disk. This may lead to a disk space consumption over time.

It's suggested to delete this folders at least at server start-up. Current solution with `clearOldTemporaryDirectories()` doesn't work because this method is called periodically from a thread without any locks or advisory on folders - it may cause the race conditions.
const String & source_replica_path, bool to_detached, size_t quorum, zkutil::ZooKeeper::Ptr zookeeper_, bool try_fetch_shared)
{
    auto zookeeper = zookeeper_ ? zookeeper_ : getZooKeeper();
    const auto part_info = MergeTreePartInfo::fromPartName(part_name, format_version);
    if (!to_detached)
    {
        if (auto part = getPartIfExists(part_info, {IMergeTreeDataPart::State::Outdated, IMergeTreeDataPart::State::Deleting}))
        {
            LOG_DEBUG(log, "Part {} should be deleted after previous attempt before fetch", part->name);
            
            cleanup_thread.wakeup();
            return false;
        }
    }
    {
        std::lock_guard lock(currently_fetching_parts_mutex);
        if (!currently_fetching_parts.insert(part_name).second)