Added cartopy setup o test_geoarray to make CI work.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
2 jobs for enhancement/replace_basemap_with_cartopy in 45 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed test_geoarray #43008

00:00:37

70.0%
passed test_styles #43009

00:00:08