package/postgis: bump version to 3.2.1
Release-notes: https://git.osgeo.org/gitea/postgis/postgis/src/tag/3.2.1/NEWS
Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit e0e268d61d3995f1096fdac4c3cd9ebb74deb57b)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>