www/py-webob: Update to 1.8.7

Changes: https://docs.pylonsproject.org/projects/webob/en/stable/changes.html

www/py-webob/Makefile

 PORTNAME=	webob
-PORTVERSION=	1.8.6
+PORTVERSION=	1.8.7
 CATEGORIES=	www python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

www/py-webob/distinfo

-TIMESTAMP = 1600848084
-SHA256 (WebOb-1.8.6.tar.gz) = aa3a917ed752ba3e0b242234b2a373f9c4e2a75d35291dcbe977649bd21fd108
-SIZE (WebOb-1.8.6.tar.gz) = 274606
+TIMESTAMP = 1638441975
+SHA256 (WebOb-1.8.7.tar.gz) = b64ef5141be559cfade448f044fa45c2260351edcb6a8ef6b7e00c7dcef0c323
+SIZE (WebOb-1.8.7.tar.gz) = 278544