Add GNOME GitLab to bsd.sites.mk and use where needed

Mk/bsd.sites.mk

@@ -640,6 +640,7 @@ git-clone-${_group}: ${_GITLAB_CLONE_DIR}
 MASTER_SITE_GNOME+= \
 	https://download.gnome.org/%SUBDIR%/ \
 	http://download.gnome.org/%SUBDIR%/ \
+	https://gitlab.gnome.org/GNOME/${PORTNAME}/-/archive/${PORTVERSION}/ \
 	http://ftp.belnet.be/mirror/ftp.gnome.org/%SUBDIR%/ \
 	ftp://ftp.belnet.be/mirror/ftp.gnome.org/%SUBDIR%/ \
 	https://ftp.acc.umu.se/pub/GNOME/%SUBDIR%/ \

x11-toolkits/vte3/Makefile

@@ -3,7 +3,7 @@
 PORTNAME=	vte
 PORTVERSION=	0.64.0
 CATEGORIES=	x11-toolkits gnome
-MASTER_SITES=	https://gitlab.gnome.org/GNOME/vte/-/archive/${PORTVERSION}/
+MASTER_SITES=	GNOME
 PKGNAMESUFFIX=	3
 DIST_SUBDIR=	gnome