math/py-rpy2: Update to 3.4.5

Changes:	https://github.com/rpy2/rpy2/blob/master/NEWS

math/py-rpy2/Makefile

 # Created by: ijliao
 
 PORTNAME=	rpy2
-PORTVERSION=	3.4.4
+PORTVERSION=	3.4.5
 CATEGORIES=	math python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

math/py-rpy2/distinfo

-TIMESTAMP = 1619198555
-SHA256 (rpy2-3.4.4.tar.gz) = e198862701bfc6d3da4a2fcf18910d71521b385283abdb2121e07b874add8e50
-SIZE (rpy2-3.4.4.tar.gz) = 187684
+TIMESTAMP = 1622214106
+SHA256 (rpy2-3.4.5.tar.gz) = 5d31a5ea43f5a59f6dec30faca87edb01fc9b8affa0beae96a99be923bd7dab3
+SIZE (rpy2-3.4.5.tar.gz) = 194433