net/syncthing: Update to 1.26.0

re: https://github.com/syncthing/syncthing/releases/tag/v1.26.0

net/syncthing/Makefile

 PORTNAME=	syncthing
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.25.0
+DISTVERSION=	1.26.0
 CATEGORIES=	net
 MASTER_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/releases/download/v${DISTVERSION}/
 DISTNAME=	${PORTNAME}-source-${DISTVERSIONFULL}

net/syncthing/distinfo

-TIMESTAMP = 1696329243
-SHA256 (syncthing-source-v1.25.0.tar.gz) = e25199e870236216b8409f4c30735c177c83d9eb7f77474c8a9d0c6739789ea1
-SIZE (syncthing-source-v1.25.0.tar.gz) = 15010308
+TIMESTAMP = 1699294316
+SHA256 (syncthing-source-v1.26.0.tar.gz) = bfb4ce711b09c15671b3e43d02c7ae20b5a380483cf0a7bcb414222d827d4e30
+SIZE (syncthing-source-v1.26.0.tar.gz) = 15020375