databases/py-asyncpg: fix build with python 3.11

PR:		260067
Approved by:	farrokhi (maintainer)

databases/py-asyncpg/Makefile

@@ -14,11 +14,15 @@ LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cpe pgsql:9.2+ python:3.6+
 CPE_VENDOR=	magic
-USE_PYTHON=	autoplist concurrent distutils
+USE_PYTHON=	autoplist concurrent cython distutils
 
 OPTIONS_DEFINE=	DOCS
 PORTDOCS=	PKG-INFO README.rst
 
+post-extract:
+	@${RM} ${WRKSRC}/asyncpg/pgproto/*.c
+	@${RM} ${WRKSRC}/asyncpg/protocol/*.c
+
 post-install:
 	@${STRIP_CMD} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/asyncpg/protocol/protocol*.so
 	@${STRIP_CMD} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/asyncpg/pgproto/pgproto*.so

databases/py-asyncpg/files/patch-setup.py

@@ -0,0 +1,11 @@
+--- setup.py.orig	2021-11-16 22:38:59 UTC
++++ setup.py
+@@ -25,7 +25,7 @@ from setuptools.command import sdist as setuptools_sdi
+ from setuptools.command import build_ext as setuptools_build_ext
+ 
+ 
+-CYTHON_DEPENDENCY = 'Cython(>=0.29.24,<0.30.0)'
++CYTHON_DEPENDENCY = 'Cython(>=0.29.24)'
+ 
+ # Minimal dependencies required to test asyncpg.
+ TEST_DEPENDENCIES = [