testing/py3-jsonschema: renamed from py-jsonschema

testing/py-jsonschema/APKBUILD → testing/py3-jsonschema/APKBUILD

 # Contributor: Francesco Colista <fcolista@alpinelinux.org>
 # Maintainer: Francesco Colista <fcolista@alpinelinux.org>
-pkgname=py-jsonschema
+pkgname=py3-jsonschema
 _pkgname=jsonschema
 pkgver=2.5.1
-pkgrel=0
+pkgrel=1
 pkgdesc="An implementation of JSON Schema validation for Python"
 url="http://pypi.python.org/pypi/jsonschema"
 arch="noarch"