Connected to ClickHouse server version 21.13.1 revision 54455.

```
INSERT INTO FUNCTION s3('https://s3.us-east-1.amazonaws.com/dzhuravlev/small_file.xml.gz', 'XML', 
'number UInt64', 'gz') SELECT * FROM numbers(10);

INSERT INTO FUNCTION s3('https://s3.us-east-1.amazonaws.com/dzhuravlev/large_file.xml.gz','XML', 
'number UInt64','gz') SELECT * from numbers(1e8);

aws s3api head-object --bucket  dzhuravlev  --key small_file.xml.gz
{
    "AcceptRanges": "bytes",
    "LastModified": "Mon, 24 Jan 2022 21:28:50 GMT",
    "ContentLength": 262,
    "ETag": "\"667796620f85cd6bad6957ea01d29548\"",
    "ContentType": "binary/octet-stream",
    "Metadata": {}
}

aws s3api head-object --bucket  dzhuravlev --key large_file.xml.gz
{
    "AcceptRanges": "bytes",
    "LastModified": "Mon, 24 Jan 2022 21:29:08 GMT",
    "ContentLength": 261909920,
    "ETag": "\"829dbc9697bcffd1528e8e6f55c564f4-8\"",
    "ContentType": "application/xml",                      ---<<<<<<<<<<<-- expected "ContentType": "binary/octet-stream",
    "Metadata": {}
}
```

So it seems that if the object size is bigger than 32MB then Clickhouse sets the wrong ContentType `application/xml` instead of `binary/octet-stream`.

{
    req.SetBucket(bucket);
    req.SetKey(key);
    req.SetPartNumber(part_number);
    req.SetUploadId(multipart_upload_id);
    req.SetContentLength(temporary_buffer->tellp());
    req.SetBody(temporary_buffer);
}
void WriteBufferFromS3::processUploadRequest(UploadPartTask & task)
{
    auto outcome = client_ptr->UploadPart(task.req);
    if (outcome.IsSuccess())
    {
        task.tag = outcome.GetResult().GetETag();
        LOG_DEBUG(log, "Writing part finished. Bucket: {}, Key: {}, Upload_id: {}, Etag: {}, Parts: {}", bucket, key, multipart_upload_id, task.tag, part_tags.size());
    }
    else
        throw Exception(outcome.GetError().GetMessage(), ErrorCodes::S3_ERROR);
    total_parts_uploaded++;
}
void WriteBufferFromS3::completeMultipartUpload()