devel/rubygem-aws-sdk-kinesisvideosignalingchannels: Update to 1.21.0

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

devel/rubygem-aws-sdk-kinesisvideosignalingchannels/Makefile

 PORTNAME=	aws-sdk-kinesisvideosignalingchannels
-PORTVERSION=	1.20.0
+PORTVERSION=	1.21.0
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 

devel/rubygem-aws-sdk-kinesisvideosignalingchannels/distinfo

-TIMESTAMP = 1669057865
-SHA256 (rubygem/aws-sdk-kinesisvideosignalingchannels-1.20.0.gem) = 6f46f3f0598a2f534c11bd20b88f0fbd54523debbaf7f1be57c9d0824c945786
-SIZE (rubygem/aws-sdk-kinesisvideosignalingchannels-1.20.0.gem) = 22016
+TIMESTAMP = 1675191509
+SHA256 (rubygem/aws-sdk-kinesisvideosignalingchannels-1.21.0.gem) = 1d5573293bfedb391a68328b77ecc1e0a7c23e04c9f0aa195caf1005660e17e9
+SIZE (rubygem/aws-sdk-kinesisvideosignalingchannels-1.21.0.gem) = 19968