www/py-google-cloud-storage: Update to 2.7.0

Changes:	https://github.com/googleapis/python-storage/releases

www/py-google-cloud-storage/Makefile

 PORTNAME=	google-cloud-storage
-PORTVERSION=	2.6.0
+PORTVERSION=	2.7.0
 CATEGORIES=	www python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

www/py-google-cloud-storage/distinfo

-TIMESTAMP = 1669057997
-SHA256 (google-cloud-storage-2.6.0.tar.gz) = 104ca28ae61243b637f2f01455cc8a05e8f15a2a18ced96cb587241cdd3820f5
-SIZE (google-cloud-storage-2.6.0.tar.gz) = 5484867
+TIMESTAMP = 1674590056
+SHA256 (google-cloud-storage-2.7.0.tar.gz) = 1ac2d58d2d693cb1341ebc48659a3527be778d9e2d8989697a2746025928ff17
+SIZE (google-cloud-storage-2.7.0.tar.gz) = 5490914