devel/rubygem-message_bus: Update to 4.3.0

- Update version requirement of RUN_DEPENDS

Changes:	https://github.com/discourse/message_bus/blob/main/CHANGELOG

devel/rubygem-message_bus/Makefile

 PORTNAME=	message_bus
-PORTVERSION=	4.2.0
+PORTVERSION=	4.3.0
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
@@ -10,7 +10,7 @@ WWW=		https://github.com/discourse/message_bus
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-RUN_DEPENDS=	rubygem-rack>=1.1.3:www/rubygem-rack
+RUN_DEPENDS=	rubygem-rack>=1.1.3,3:www/rubygem-rack
 
 USES=		cpe gem shebangfix
 USE_RUBY=	yes

devel/rubygem-message_bus/distinfo

-TIMESTAMP = 1648249150
-SHA256 (rubygem/message_bus-4.2.0.gem) = f84185fb1becdc8ef0c56b459ee4e15c947a03ba4222e3e229d039bcf6fcea95
-SIZE (rubygem/message_bus-4.2.0.gem) = 200192
+TIMESTAMP = 1669058361
+SHA256 (rubygem/message_bus-4.3.0.gem) = b37507460b6b5676e63583da662a8e337af9b1fd3df3c3877f0ef6bf96582a0d
+SIZE (rubygem/message_bus-4.3.0.gem) = 199680