devel/py-tox: Update version 4.17.1=>4.18.0

Changelog: https://github.com/tox-dev/tox/releases/tag/4.18.0

devel/py-tox/Makefile

 PORTNAME=	tox
-DISTVERSION=	4.17.1
+DISTVERSION=	4.18.0
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

devel/py-tox/distinfo

-TIMESTAMP = 1727154246
-SHA256 (tox-4.17.1.tar.gz) = 2c41565a571e34480bd401d668a4899806169a4633e972ac296c54406d2ded8a
-SIZE (tox-4.17.1.tar.gz) = 180242
+TIMESTAMP = 1727412227
+SHA256 (tox-4.18.0.tar.gz) = 5dfa1cab9f146becd6e351333a82f9e0ade374451630ba65ee54584624c27b58
+SIZE (tox-4.18.0.tar.gz) = 180782