Ommit creation of .idx files when reading the .grib files. commit: https://gitlab.inf.unibz.it/ado/meteorology/ado-downscale-pet_operational/-/commit/217a21633d915e05c0999f261d2dd52344158810 issue: https://gitlab.inf.unibz.it/ado/meteorology/ado-download_operational/-/issues/6