Harvest DLR EOC STAC
The goal is to harvest data from here: https://geoservice.dlr.de/eoc/ogc/stac/v1/
The items in the STAC service are connected to OGC ISO-compatible (ISO19115/ISO19119) metadata files. Since we already have a parser for this metadata format, it is more feasible to make use of that instead of writing a parser for STAC metadata.