devel/rubygem-aws-sdk-forecastservice: Update to 1.68.0

Changes:	https://github.com/aws/aws-sdk-ruby/blob/version-3/gems/aws-sdk-forecastservice/CHANGELOG.md

devel/rubygem-aws-sdk-forecastservice/Makefile

 PORTNAME=	aws-sdk-forecastservice
-PORTVERSION=	1.67.0
+PORTVERSION=	1.68.0
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 

devel/rubygem-aws-sdk-forecastservice/distinfo

-TIMESTAMP = 1738089502
-SHA256 (rubygem/aws-sdk-forecastservice-1.67.0.gem) = 784babce1531104aa4a1a40ad5631658fe97f4e2830bd0a2ae17181c318ad5d9
-SIZE (rubygem/aws-sdk-forecastservice-1.67.0.gem) = 103424
+TIMESTAMP = 1739117056
+SHA256 (rubygem/aws-sdk-forecastservice-1.68.0.gem) = 26d5e98508fc69a6930b9bb29093975783037cb3fb196a786be17f5c3f664226
+SIZE (rubygem/aws-sdk-forecastservice-1.68.0.gem) = 103424