Bump pydocstyle from 5.0.1 to 5.0.2

Bumps [pydocstyle](https://github.com/PyCQA/pydocstyle) from 5.0.1 to 5.0.2.
- [Release notes](https://github.com/PyCQA/pydocstyle/releases)
- [Changelog](https://github.com/PyCQA/pydocstyle/blob/master/docs/release_notes.rst)
- [Commits](PyCQA/pydocstyle@5.0.1...5.0.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

requirements.txt

@@ -8,7 +8,7 @@ Flask-SeaSurf==0.2.2
 flask-talisman==0.7.0
 gunicorn==20.0.4
 pycodestyle==2.5.0
-pydocstyle==5.0.1
+pydocstyle==5.0.2
 requests==2.22.0
 Sphinx==2.3.1
 Werkzeug==0.16.0