x11/xorgproto: update to 2021.4

Changes:	https://lists.x.org/archives/xorg-announce/2021-February/003072.html
Changes:	https://lists.x.org/archives/xorg-announce/2021-February/003073.html
Changes:	https://lists.x.org/archives/xorg-announce/2021-April/003085.html
PR:		255771
Reported by:	portscout
Approved by:	zeising
Exp-run by:	antoine
Differential Revision:	https://reviews.freebsd.org/D30203

x11/xorgproto/Makefile

 PORTNAME=	xorgproto
-PORTVERSION=	2020.1
+PORTVERSION=	2021.4
 CATEGORIES=	x11
 
 MAINTAINER=	x11@FreeBSD.org

x11/xorgproto/distinfo

-TIMESTAMP = 1586890336
-SHA256 (xorg/proto/xorgproto-2020.1.tar.bz2) = 54a153f139035a376c075845dd058049177212da94d7a9707cf9468367b699d2
-SIZE (xorg/proto/xorgproto-2020.1.tar.bz2) = 848072
+TIMESTAMP = 1619740307
+SHA256 (xorg/proto/xorgproto-2021.4.tar.bz2) = 0f5157030162844b398e7ce69b8bb967c2edb8064b0a9c9bb5517eb621459fbf
+SIZE (xorg/proto/xorgproto-2021.4.tar.bz2) = 885414