Bump for release

NEWS.rst

+21.0.1 (2021-01-30)
+===================
+
+Bug Fixes
+---------
+
+- commands: debug: Use packaging.version.parse to compare between versions. (`#9461 <https://github.com/pypa/pip/issues/9461>`_)
+- New resolver: Download and prepare a distribution only at the last possible
+  moment to avoid unnecessary network access when the same version is already
+  installed locally. (`#9516 <https://github.com/pypa/pip/issues/9516>`_)
+
+Vendored Libraries
+------------------
+
+- Upgrade packaging to 20.9
+
+
 21.0 (2021-01-23)
 =================
 

news/9461.bugfix.rst

-commands: debug: Use packaging.version.parse to compare between versions.

news/9516.bugfix.rst

-New resolver: Download and prepare a distribution only at the last possible
-moment to avoid unnecessary network access when the same version is already
-installed locally.

news/packaging.vendor.rst

-Upgrade packaging to 20.9

src/pip/__init__.py

@@ -4,7 +4,7 @@ if MYPY_CHECK_RUNNING:
     from typing import List, Optional
 
 
-__version__ = "21.1.dev0"
+__version__ = "21.0.1"
 
 
 def main(args=None):