devel/rubygem-unicode-display_width: Update to 3.1.3

Changes:	https://github.com/janlelis/unicode-display_width/blob/main/CHANGELOG.md

devel/rubygem-unicode-display_width/Makefile

 PORTNAME=	unicode-display_width
-PORTVERSION=	3.1.2
+PORTVERSION=	3.1.3
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 

devel/rubygem-unicode-display_width/distinfo

-TIMESTAMP = 1732261042
-SHA256 (rubygem/unicode-display_width-3.1.2.gem) = fdd4db6cf898201e341b21106663866dbd2a64d665c1a0a2fe8af09c6ef495d1
-SIZE (rubygem/unicode-display_width-3.1.2.gem) = 17920
+TIMESTAMP = 1735705251
+SHA256 (rubygem/unicode-display_width-3.1.3.gem) = dbbbb0fddc2941a5d3582d8f991aad6df1defb83741649a07d27cccc4c95c942
+SIZE (rubygem/unicode-display_width-3.1.3.gem) = 18432