net-im/gajim: update to 1.3.2

Changes:
https://gajim.org/post/2021-04-24-gajim-1.3.2-released/

Add OPENGPG option (default on) to add dependency required
for GPG encryption plugin.

PR:		256073
Submitted by:	Alastair Hogge <agh@riseup.net>