Bump pytest from 6.2.2 to 6.2.3

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.2.2 to 6.2.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@6.2.2...6.2.3)

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

requirements-test.txt

@@ -5,5 +5,5 @@ coverage==5.5 # pytest-cov
 boto3==1.17.43
 mirakuru==2.3.0
 port-for==0.4
-pytest==6.2.2
+pytest==6.2.3
 -e .[tests]