Bump pytest from 4.6.3 to 5.0.1 (#1148)

* Bump pytest from 4.6.3 to 5.0.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 4.6.3 to 5.0.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest/compare/4.6.3...5.0.1)

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

* Update tox.ini

requirements_tests.txt

@@ -1,5 +1,5 @@
 flake8==3.7.7
 pylint==2.3.1
-pytest==4.6.3
+pytest==5.0.1
 pytest-timeout==1.3.3
 pytest-aiohttp==0.3.0

tox.ini

@@ -16,4 +16,4 @@ commands =
 [testenv:tests]
 basepython = python3
 commands =
-    pytest --duration=10 tests
+    pytest --timeout=10 tests