Bump pytest from 4.4.0 to 4.4.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 4.4.0 to 4.4.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@4.4.0...4.4.1)

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

Author: dependabot-support

requirements.txt

@@ -1,7 +1,7 @@
 codacy-coverage==1.3.11
 mock==2.0.0
 pytest-cov==2.6.1
-pytest==4.4.0
+pytest==4.4.1
 six==1.12.0
 trio==0.11.0; python_version>="3.6"
 pytest-trio==0.5.2; python_version>="3.6"