'AioSession._create_client' was never awaited

document-service_1  | [2022-05-23T15:38:44.217Z] | prozorro_sale.document_service.api.main | INFO - Application is starting... | X-Request-ID: unknown
document-service_1  | /document_service/prozorro_sale/document_service/storages/s3_storage.py:31: RuntimeWarning: coroutine 'AioSession._create_client' was never awaited
document-service_1  |   self.client()
document-service_1  | RuntimeWarning: Enable tracemalloc to get the object allocation traceback

Change https://gitlab.prozorro.sale/prozorro-sale/document-service/-/blob/master/src/prozorro_sale/document_service/storages/s3_storage.py#L31

like this

    @critical_error
    async def _init_(self):
        async with self.client() as client:
            await client.head_bucket(Bucket=self.bucket)