This patch updates xv from 5.0.0 to 5.2.0.

Tested on amd64.

Index: Makefile
===================================================================
RCS file: /cvs/ports/graphics/xv/Makefile,v
retrieving revision 1.66
diff -u -p -r1.66 Makefile
--- Makefile	7 Feb 2024 19:24:01 -0000	1.66
+++ Makefile	27 Jun 2024 11:00:16 -0000
@@ -1,6 +1,6 @@
 COMMENT=	X11 image display and modification tool
 
-V=		5.0.0
+V=		5.2.0
 DISTNAME=	xv-3.10a-js-$V
 PKGNAME=	xv-$V
 
Index: distinfo
===================================================================
RCS file: /cvs/ports/graphics/xv/distinfo,v
retrieving revision 1.16
diff -u -p -r1.16 distinfo
--- distinfo	7 Feb 2024 19:24:01 -0000	1.16
+++ distinfo	27 Jun 2024 11:00:16 -0000
@@ -1,2 +1,2 @@
-SHA256 (xv-3.10a-js-5.0.0.tar.gz) = cKd6MHrv6kpasZ/oopN1HLcAN6ZD55H6HEsEJxLHKEc=
-SIZE (xv-3.10a-js-5.0.0.tar.gz) = 4820097
+SHA256 (xv-3.10a-js-5.2.0.tar.gz) = Re8MLxegvy2fdvF5xM0vO3hbJTyP3p6naMyDYp8p1J4=
+SIZE (xv-3.10a-js-5.2.0.tar.gz) = 4823545