How to Specify a delimiter character when Exporting a .CSV file?

When making an Export task request to the
/api/v2/assets/{asset_uid}/exports/ endpoint, it seems to be generating an .csv file that uses a semicolon, ;, as the delimeter, instead of a comma, ,.
Since we are piping the data/results to other software that expects comma-separated values, we would like to change the exported format if possible.

Here is the json that we’re POSTing to make the export task request:

{"fields_from_all_versions":"true",
 "group_sep":",",
 "hierarchy_in_labels":"false",
 "include_media_url":"false",
 "lang":"_default",
 "multiple_select":"both",
 "type":"csv"
}

Is there a json field (or some other programmable method) that we can use to specify the delimiter as a comma in the exported .CSV file?