x11-toolkits/rubygem-gdk3: Update to 4.1.3

Changes:	https://github.com/ruby-gnome/ruby-gnome/releases

x11-toolkits/rubygem-gdk3/Makefile

 PORTNAME=	gdk3
-PORTVERSION=	4.1.2
+PORTVERSION=	4.1.3
 CATEGORIES=	x11-toolkits rubygems
 MASTER_SITES=	RG
 

x11-toolkits/rubygem-gdk3/distinfo

-TIMESTAMP = 1677771729
-SHA256 (rubygem/gdk3-4.1.2.gem) = 414c5b2eca21aa293ce1c1b90577902143c7f22c71c0c8a8fa67b95379fdab12
-SIZE (rubygem/gdk3-4.1.2.gem) = 35840
+TIMESTAMP = 1682903200
+SHA256 (rubygem/gdk3-4.1.3.gem) = cdaafdf5405d3d2e5f648ad343bae637333baa8ba6a85569cd8d037b7f9327eb
+SIZE (rubygem/gdk3-4.1.3.gem) = 35840