www/py-txrequests: Mark BROKEN and DEPRECATED

- Broken since latest update with devel/py-twisted
- This was a fork of www/py-requests-futures which was inactive for a
  while but now the development has started again. So use
  www/py-requests-futures instead of this.
- Set EXPIRATION_DATE on 2022-12-31

www/py-txrequests/Makefile

@@ -11,16 +11,20 @@ WWW=		https://github.com/tardyp/txrequests
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+DEPRECATED=	Use www/py-requests-futures as upstream is unmaintained since 2018
+EXPIRATION_DATE=	2022-12-31
+BROKEN=	Fails to build with latest devel/py-twisted
+
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}requests>=1.2.0:www/py-requests@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}twisted>=9.0.0:devel/py-twisted@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist distutils
 
-NO_ARCH=	yes
-
 TEST_ENV=	PYTHONPATH=${TEST_WRKSRC}
 
+NO_ARCH=	yes
+
 do-test:
 	@cd ${WRKSRC} && ${SETENV} ${TEST_ENV} ${LOCALBASE}/bin/trial ${WRKSRC}/test_txrequests.py