multimedia/rubygem-gstreamer: Update to 3.5.0

Changes:	https://github.com/ruby-gnome/ruby-gnome/blob/master/NEWS

multimedia/rubygem-gstreamer/Makefile

 PORTNAME=	gstreamer
-PORTVERSION=	3.4.9
+PORTVERSION=	3.5.0
 CATEGORIES=	multimedia rubygems
 MASTER_SITES=	RG
 

multimedia/rubygem-gstreamer/distinfo

-TIMESTAMP = 1632038040
-SHA256 (rubygem/gstreamer-3.4.9.gem) = cd215cfe70104e61833425a4be3d3b2db668ffe5343817d79536e0532b8d6b18
-SIZE (rubygem/gstreamer-3.4.9.gem) = 29184
+TIMESTAMP = 1642102737
+SHA256 (rubygem/gstreamer-3.5.0.gem) = 398aa5997e1d89280f7dda3babd5ac0c3a7f08e3f794017c2d64c1c179649ca4
+SIZE (rubygem/gstreamer-3.5.0.gem) = 29184