www/py-spyne: Convert to USE_PYTHON=pep517

- Bump PORTREVISION for package change

www/py-spyne/Makefile

 PORTNAME=	spyne
 PORTVERSION=	2.14.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	www devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -13,6 +13,8 @@ WWW=		http://spyne.io/ \
 LICENSE=	LGPL21
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}setuptools>=0:devel/py-setuptools@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}wheel>=0:devel/py-wheel@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytz>=0,1:devel/py-pytz@${PY_FLAVOR}
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}colorama>=0:devel/py-colorama@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}coverage>=0:devel/py-coverage@${PY_FLAVOR} \
@@ -36,7 +38,7 @@ TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}colorama>=0:devel/py-colorama@${PY_FLAVOR}
 		${PYTHON_PKGNAMEPREFIX}zeep>=0:net/py-zeep@${PY_FLAVOR}
 
 USES=		python
-USE_PYTHON=	autoplist concurrent distutils pytest
+USE_PYTHON=	autoplist concurrent pep517 pytest
 
 NO_ARCH=	yes
 TEST_ENV=	DJANGO_SETTINGS_MODULE=rpctest.settings PYTHONPATH=examples/django