Test for empty data downloaded from AOD

[sssuhanov]

In table aod.history, we have a column with data. It is necessary to check that the data is in each record

[sssuhanov]

• [x] Add check to dagster

[sssuhanov]

Maybe i need to separate history asset for download and upload parts

[sssuhanov]

• [x] Fix empty array in downloader

[sssuhanov]

It's not a problem. Some items really don't have a history.