Bump pytest from 6.1.1 to 6.1.2 (#524)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.1.1 to 6.1.2.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@6.1.1...6.1.2)

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

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

requirements/test.txt

@@ -1,5 +1,5 @@
 async-timeout==3.0.1
-pytest==6.1.1
+pytest==6.1.2
 pytest-cov==2.10.1
 pytest-asyncio==0.14.0
 flake8==3.8.4