Fixed broken pip installation of basemap. Updated version info.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
4 jobs for v0.9.26 in 3 minutes and 42 seconds (queued for 15 minutes and 10 seconds)
latest
Status Job ID Name Coverage
  Test
passed #42608
test_arosics

00:03:01

85.0%
passed #42609
test_styles

00:00:10

 
  Deploy
passed #42611
create_github_release

00:00:09

passed #42610
deploy_pypi

00:00:20