chore(deps): 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.txt

@@ -1,4 +1,4 @@
-pytest==5.4.2
+pytest==5.4.3
 sphinx-markdown-tables==0.0.14
 pytest-cov==2.8.1
 coveralls==2.0.0