Bump pytest from 6.2.1 to 6.2.2

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.2.1 to 6.2.2.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@6.2.1...6.2.2)

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

requirements-test.txt

@@ -1,5 +1,5 @@
 # test runs requirements (versions we'll be testing against) - automatically updated by requires.io
-pytest==6.2.1
+pytest==6.2.2
 pytest-xdist==2.2.0
 pytest-cov==2.11.1
 coverage==5.3.1 # pytest-cov