Bump pytest-sugar from 0.9.2 to 0.9.4 (#277)

Bumps [pytest-sugar](https://github.com/Teemu/pytest-sugar) from 0.9.2 to 0.9.4.
- [Release notes](https://github.com/Teemu/pytest-sugar/releases)
- [Changelog](https://github.com/Teemu/pytest-sugar/blob/master/CHANGES.rst)
- [Commits](https://github.com/Teemu/pytest-sugar/commits)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

requirements-dev.txt

@@ -14,6 +14,6 @@ pyroma==2.6
 pytest-aiohttp==0.3.0
 pytest-asyncio==0.10.0
 pytest-cov==2.8.1
-pytest-sugar==0.9.2
+pytest-sugar==0.9.4
 pytest==5.2.2
 towncrier==19.2.0