devel/aws-crt-cpp: Update to 0.26.8

ChangeLog: https://github.com/awslabs/aws-crt-cpp/releases/tag/v0.26.8

devel/aws-crt-cpp/Makefile

 PORTNAME=	aws-crt-cpp
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.26.7
+DISTVERSION=	0.26.8
 CATEGORIES=	devel
 
 MAINTAINER=	eduardo@FreeBSD.org

devel/aws-crt-cpp/distinfo

-TIMESTAMP = 1712829900
-SHA256 (awslabs-aws-crt-cpp-v0.26.7_GH0.tar.gz) = 17c527de809870312726329379545fb2f1adccd469238a91964f48512030c1c3
-SIZE (awslabs-aws-crt-cpp-v0.26.7_GH0.tar.gz) = 350448
+TIMESTAMP = 1712955918
+SHA256 (awslabs-aws-crt-cpp-v0.26.8_GH0.tar.gz) = 36ced4fb54c8eb7325b4576134e01f93bfaca2709565b5ad036d198d703e4c8f
+SIZE (awslabs-aws-crt-cpp-v0.26.8_GH0.tar.gz) = 350459