Bump pytest from 6.0.2 to 6.1.0

Bumps [pytest](https://github.com/pytest-dev/pytest) from 6.0.2 to 6.1.0.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@6.0.2...6.1.0)

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

requirements-test.txt

@@ -2,7 +2,7 @@
 pip>=9  # minimum installation requirements
 setuptools>=21  # minimum installation requirements
 coverage==5.3 # pytest-cov
-pytest==6.0.2
+pytest==6.1.0
 pytest-cov==2.10.1
 pytest-xdist==2.1.0
 psycopg2-binary==2.8.6; platform_python_implementation != "PyPy"