Bumped version.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
4 jobs for v0.13.0 in 11 minutes and 21 seconds (queued for 23 minutes and 13 seconds)
latest
Status Name Job ID Coverage
  Test
passed test_enpt #28485

00:09:36

91.0%
passed test_styles #28486

00:00:29

 
  Deploy
passed create_github_release #28488

00:00:25

passed deploy_pypi #28487

00:00:50