Merge #177

177: Update pip to 20.2.3 r=duckinator a=pyup-bot


This PR updates [pip](https://pypi.org/project/pip) from **20.2.2** to **20.2.3**.



<details>
  <summary>Changelog</summary>
  
  
   ### 20.2.3
   ```
   ===================

Deprecations and Removals
-------------------------

- Deprecate support for Python 3.5 (`8181 &lt;https://github.com/pypa/pip/issues/8181&gt;`_)

Features
--------

- Make the ``setup.py install`` deprecation warning less noisy. We warn only
  when ``setup.py install`` succeeded and ``setup.py bdist_wheel`` failed, as
  situations where both fails are most probably irrelevant to this deprecation. (`8752 &lt;https://github.com/pypa/pip/issues/8752&gt;`_)
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pip
  - Changelog: https://pyup.io/changelogs/pip/
  - Homepage: https://pip.pypa.io/
</details>



Co-authored-by: pyup-bot <[email protected]>

setup.cfg

@@ -25,7 +25,7 @@ python_requires = >=3.5
 # FIXME: This name seems wrong, but I can't think of a better one atm.
 build =
     bork==5.0.0
-    pip==20.2.2
+    pip==20.2.3
     setuptools==50.3.0
     wheel==0.35.1