Shift to use vX.Y.Z tags
Shift to use vX.Y.Z tags

Upstream is moving from "libphonenumber-X.Y.Z" tags to
use "vX.Y.Z" tags, so use this as an opportunity to move
from "release-X.Y.Z" to "vX.Y.Z"
daviddrysdale/python-phonenumbers,daviddrysdale/python-phonenumbers,gencer/python-phonenumbers,daviddrysdale/python-phonenumbers