devel/glab: Update to 1.18.0

Changes:	https://github.com/profclems/glab/releases/tag/v1.18.0

devel/glab/Makefile

 PORTNAME=	glab
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.17.0
+DISTVERSION=	1.18.0
 CATEGORIES=	devel
 
 MAINTAINER=	lcook@FreeBSD.org

devel/glab/distinfo

-TIMESTAMP = 1621093479
-SHA256 (go/devel_glab/glab-v1.17.0/v1.17.0.mod) = c1541a3ee51affd45c93d1e989a2ff824802b3496f07ff268e6358fbbc8320a0
-SIZE (go/devel_glab/glab-v1.17.0/v1.17.0.mod) = 1583
-SHA256 (go/devel_glab/glab-v1.17.0/v1.17.0.zip) = d0832c39defa78e0dcdfd16bda0e5d98a98f238f31b2d62eead62a36e5b6a490
-SIZE (go/devel_glab/glab-v1.17.0/v1.17.0.zip) = 16638528
+TIMESTAMP = 1623172417
+SHA256 (go/devel_glab/glab-v1.18.0/v1.18.0.mod) = 14d80fca0ff67aa1df77f1d9a2bb1992e299595ae5475ae5460d2b57b3d8836d
+SIZE (go/devel_glab/glab-v1.18.0/v1.18.0.mod) = 1583
+SHA256 (go/devel_glab/glab-v1.18.0/v1.18.0.zip) = 5f81626236dac92a0265df0d7705a360eb0a0fcbd6856d9b976eaacbd29d658f
+SIZE (go/devel_glab/glab-v1.18.0/v1.18.0.zip) = 16657455