devel/py-pip: Disable DOCS option to fix the build

- Bump PORTREVISION for package change

textproc/py-towncrier has been updated to 24.7.1 in
4bd3073. However towncrier 24.7+ is
incompatible with sphinxcontrib-towncrier. Therefore, it causes build failure
when DOCS option is enabled.

Reference:	https://pkg-status.freebsd.org/package19/data/140amd64-default-build-as-user/39a5c2d0b3e6/logs/py311-pip-23.3.2_1.log
		sphinx-contrib/sphinxcontrib-towncrier#92
PR:		280570

devel/py-pip/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	pip
 PORTVERSION=	23.3.2
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel python
 MASTER_SITES=	https://files.pythonhosted.org/packages/c3/9e/8a7ba2c9984a060daa6c6f9fff4d576b7ace3936239d6b771541eab972ed/:test_setuptools \
 		https://files.pythonhosted.org/packages/61/86/cc8d1ff2ca31a312a25a708c891cf9facbad4eae493b3872638db6785eb5/:test_wheel
@@ -50,7 +50,7 @@ GH_ACCOUNT=	pypa
 
 SHEBANG_FILES=	src/pip/__init__.py
 
-OPTIONS_DEFINE=	DOCS
+#OPTIONS_DEFINE=	DOCS
 
 DOCS_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}furo>=0:textproc/py-furo@${PY_FLAVOR} \
 			${PYTHON_PKGNAMEPREFIX}myst-parser>=0:textproc/py-myst-parser@${PY_FLAVOR} \