devel/py-keystoneauth1: Update to 5.3.0

Changes:	https://docs.openstack.org/releasenotes/keystoneauth/

devel/py-keystoneauth1/Makefile

 PORTNAME=	keystoneauth1
-PORTVERSION=	5.2.1
+PORTVERSION=	5.3.0
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

devel/py-keystoneauth1/distinfo

-TIMESTAMP = 1688166210
-SHA256 (keystoneauth1-5.2.1.tar.gz) = f79b1c27ed5a69be4d03a5bc4967df3dfab0c5d76e85226fa2060cffadff74a1
-SIZE (keystoneauth1-5.2.1.tar.gz) = 273214
+TIMESTAMP = 1693823885
+SHA256 (keystoneauth1-5.3.0.tar.gz) = 017c2b9b599453c92940750edbb20f17687121b2890114bf9d36df14a0627117
+SIZE (keystoneauth1-5.3.0.tar.gz) = 274216