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>

Author: dependabot-preview[bot]

test-requirements.txt

@@ -26,7 +26,6 @@ isort==5.5.3              # via pylint
 jedi==0.17.2              # via -r test-requirements.in, ipython
 lazy-object-proxy==1.4.3  # via astroid
 mccabe==0.6.1             # via flake8, pylint
-more-itertools==8.5.0     # via pytest
 mypy-extensions==0.4.3 ; implementation_name == "cpython"  # via -r test-requirements.in, black, mypy
 mypy==0.782 ; implementation_name == "cpython"  # via -r test-requirements.in
 outcome==1.0.1            # via -r test-requirements.in
@@ -47,7 +46,7 @@ pylint==2.6.0             # via -r test-requirements.in
 pyopenssl==19.1.0         # via -r test-requirements.in
 pyparsing==2.4.7          # via packaging
 pytest-cov==2.10.1        # via -r test-requirements.in
-pytest==6.0.2             # via -r test-requirements.in, pytest-cov
+pytest==6.1.0             # via -r test-requirements.in, pytest-cov
 regex==2020.9.27          # via black
 six==1.15.0               # via astroid, cryptography, packaging, pyopenssl
 sniffio==1.1.0            # via -r test-requirements.in