devel/py-cliff: Update to 4.9.1

Changes:	https://docs.openstack.org/cliff/latest/user/history.html

devel/py-cliff/Makefile

 PORTNAME=	cliff
-PORTVERSION=	4.9.0
+PORTVERSION=	4.9.1
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

devel/py-cliff/distinfo

-TIMESTAMP = 1740836110
-SHA256 (cliff-4.9.0.tar.gz) = 735c922eda0817e2cc8e866000c04436efb40316aae490906ffa670560c8dbe1
-SIZE (cliff-4.9.0.tar.gz) = 86247
+TIMESTAMP = 1742070344
+SHA256 (cliff-4.9.1.tar.gz) = 5b392198293c0b9225d459be8ba710cf8248f1ee33006bdeb3d92fb0012592b4
+SIZE (cliff-4.9.1.tar.gz) = 86597