security/py-google-auth: Update to 2.7.0

Changes:	https://github.com/googleapis/google-auth-library-python/releases

security/py-google-auth/Makefile

 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	google-auth
-PORTVERSION=	2.6.0
+PORTVERSION=	2.7.0
 CATEGORIES=	security python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

security/py-google-auth/distinfo

-TIMESTAMP = 1646058118
-SHA256 (google-auth-2.6.0.tar.gz) = ad160fc1ea8f19e331a16a14a79f3d643d813a69534ba9611d2c80dc10439dad
-SIZE (google-auth-2.6.0.tar.gz) = 188477
+TIMESTAMP = 1654708396
+SHA256 (google-auth-2.7.0.tar.gz) = 8a954960f852d5f19e6af14dd8e75c20159609e85d8db37e4013cc8c3824a7e1
+SIZE (google-auth-2.7.0.tar.gz) = 195638