Merge #187

187: Update sphinx to 3.4.3 r=YourLocalBlake a=pyup-bot


This PR updates [sphinx](https://pypi.org/project/sphinx) from **3.4.1** to **3.4.3**.



<details>
  <summary>Changelog</summary>
  
  
   ### 3.4.3
   ```
   =====================================

Bugs fixed
----------

* 8655: autodoc: Failed to generate document if target module contains an
  object that raises an exception on ``hasattr()``
   ```
   
  
  
   ### 3.4.2
   ```
   =====================================

Bugs fixed
----------

* 8164: autodoc: Classes that inherit mocked class are not documented
* 8602: autodoc: The ``autodoc-process-docstring`` event is emitted to the
  non-datadescriptors unexpectedly
* 8616: autodoc: AttributeError is raised on non-class object is passed to
  autoclass directive
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/sphinx
  - Changelog: https://pyup.io/changelogs/sphinx/
  - Homepage: http://sphinx-doc.org/
</details>



Co-authored-by: pyup-bot <github-bot@pyup.io>

doc-requirements.txt

@@ -1,3 +1,3 @@
 mock==4.0.3
-sphinx==3.4.1
+sphinx==3.4.3
 sphinx_rtd_theme==0.5.0