devel/py-ruamel.yaml: update to 0.18.6

Changes:	https://sourceforge.net/p/ruamel-yaml/code/ci/0.18.6/tree/CHANGES
Reported by:	repology

devel/py-ruamel.yaml/Makefile

 PORTNAME=	ruamel.yaml
-PORTVERSION=	0.18.5
+PORTVERSION=	0.18.6
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

devel/py-ruamel.yaml/distinfo

-TIMESTAMP = 1699303403
-SHA256 (ruamel.yaml-0.18.5.tar.gz) = 61917e3a35a569c1133a8f772e1226961bf5a1198bea7e23f06a0841dea1ab0e
-SIZE (ruamel.yaml-0.18.5.tar.gz) = 142605
+TIMESTAMP = 1707339525
+SHA256 (ruamel.yaml-0.18.6.tar.gz) = 8b27e6a217e786c6fbe5634d8f3f11bc63e0f80f6a5890f28863d9c45aac311b
+SIZE (ruamel.yaml-0.18.6.tar.gz) = 143362