security/py-certbot-dns-cloudflare: Convert to USE_PYTHON=pep517

- Bump PORTREVISION for package change

security/py-certbot-dns-cloudflare/Makefile

 PORTNAME=	certbot-dns-cloudflare
 PORTVERSION=	${ACME_VERSION}
+PORTREVISION=	1
 CATEGORIES=	security python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -13,13 +14,15 @@ WWW=		https://certbot.eff.org/ \
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
+BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}setuptools>=0:devel/py-setuptools@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}wheel>=0:devel/py-wheel@${PY_FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}acme>=${ACME_VERSION},1:security/py-acme@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}certbot>=${ACME_VERSION},1:security/py-certbot@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}cloudflare>=1.5.1:dns/py-cloudflare@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}setuptools>=41.6.0:devel/py-setuptools@${PY_FLAVOR}
 
 USES=		python
-USE_PYTHON=	autoplist concurrent distutils
+USE_PYTHON=	autoplist concurrent pep517
 
 NO_ARCH=	yes