devel/py-cachetools: Update to 4.2.2

Changes:	https://github.com/tkem/cachetools/blob/master/CHANGELOG.rst

devel/py-cachetools/Makefile

 # Created by: Alexander Nusov <alexander.nusov@nfvexpress.com>
 
 PORTNAME=	cachetools
-PORTVERSION=	4.2.1
+PORTVERSION=	4.2.2
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

devel/py-cachetools/distinfo

-TIMESTAMP = 1611665405
-SHA256 (cachetools-4.2.1.tar.gz) = f469e29e7aa4cff64d8de4aad95ce76de8ea1125a16c68e0d93f65c3c3dc92e9
-SIZE (cachetools-4.2.1.tar.gz) = 24753
+TIMESTAMP = 1619725347
+SHA256 (cachetools-4.2.2.tar.gz) = 61b5ed1e22a0924aed1d23b478f37e8d52549ff8a961de2909c69bf950020cff
+SIZE (cachetools-4.2.2.tar.gz) = 23682