Bump pytest from 5.4.2 to 5.4.3

Bumps [pytest](https://github.com/pytest-dev/pytest) from 5.4.2 to 5.4.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@5.4.2...5.4.3)

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==5.4.2
+pytest==5.4.3
 pytest-xdist==1.32.0
 pytest-cov==2.9.0
 coverage==5.1 # pytest-cov