graphics/glslang: update to 12.2.0

Changes:	https://github.com/KhronosGroup/glslang/releases/tag/12.2.0
Reported by:	GitHub (watch releases)

graphics/glslang/Makefile

 PORTNAME=	glslang
-DISTVERSION=	12.1.0
+DISTVERSION=	12.2.0
 CATEGORIES=	graphics
 
 MAINTAINER=	jbeich@FreeBSD.org

graphics/glslang/distinfo

-TIMESTAMP = 1679437254
-SHA256 (KhronosGroup-glslang-12.1.0_GH0.tar.gz) = 1515e840881d1128fb6d831308433f731808f818f2103881162f3ffd47b15cd5
-SIZE (KhronosGroup-glslang-12.1.0_GH0.tar.gz) = 3686676
+TIMESTAMP = 1684356476
+SHA256 (KhronosGroup-glslang-12.2.0_GH0.tar.gz) = 870d17030fda7308c1521fb2e01a9e93cbe4b130bc8274e90d00e127432ab6f6
+SIZE (KhronosGroup-glslang-12.2.0_GH0.tar.gz) = 3706316