package/gst1-python: bump version to 1.18.5
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 02bf32ca0181158f78694f3142637f98b89c503a)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>