www/py-google-cloud-vision: Update to 3.4.0

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

www/py-google-cloud-vision/Makefile

 PORTNAME=	google-cloud-vision
-PORTVERSION=	3.3.1
+PORTVERSION=	3.4.0
 CATEGORIES=	www python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}

www/py-google-cloud-vision/distinfo

-TIMESTAMP = 1675191115
-SHA256 (google-cloud-vision-3.3.1.tar.gz) = 1bbbf4f42035a49d8e48bee007362f7d11ab8cf8d0125c67c9e52f3f6be91494
-SIZE (google-cloud-vision-3.3.1.tar.gz) = 677957
+TIMESTAMP = 1679498850
+SHA256 (google-cloud-vision-3.4.0.tar.gz) = cb2c11561d212fa933a4090a45521404618000cbf21ee34a5b30a45034473b4e
+SIZE (google-cloud-vision-3.4.0.tar.gz) = 759513