textproc/py-tomli: Convert to USE_PYTHON=pep517

- Add build for all Python flavors/versions (USE_PYTHON=allflavors)
- Bump PORTREVISION for dependency and package change

textproc/py-tomli/Makefile

@@ -1,5 +1,6 @@
 PORTNAME=	tomli
 PORTVERSION=	2.0.1
+PORTREVISION=	1
 CATEGORIES=	textproc python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -11,12 +12,12 @@ WWW=		https://github.com/hukkin/tomli
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-USES=		python:3.7+
-USE_PYTHON=	autoplist concurrent distutils
+USES=		python
+USE_PYTHON=	allflavors autoplist concurrent pep517
 
 NO_ARCH=	yes
 
-post-patch:
-	@${SED} -e 's|%%PORTVERSION%%|${PORTVERSION}|' ${FILESDIR}/setup.py > ${WRKSRC}/setup.py
+PEP517_BUILD_CMD=	${PYTHON_CMD} -m flit_core.wheel
+PEP517_BUILD_DEPEND=	${PYTHON_PKGNAMEPREFIX}flit-core>=3.2.0<4:devel/py-flit-core@${PY_FLAVOR}
 
 .include <bsd.port.mk>