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

@@ -1,6 +1,6 @@
 # test runs requirements (versions we'll be testing against) - automatically updated by requires.io
 coverage==5.5 # pytest-cov
-pytest==6.2.2
+pytest==6.2.3
 mirakuru==2.3.0
 mysqlclient==2.0.3 # rq.filter: !=1.4.2.post1
 port-for==0.4