Updated HISTORY.rst and version info.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>
2 jobs for v0.18.3 in 16 minutes and 44 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Test
passed test_gms_preprocessing #25668

00:15:48

64.0%
passed test_styles #25669

00:00:56