chore: bump pytest from 5.4.3 to 6.0.1

Bumps [pytest](https://github.com/pytest-dev/pytest) from 5.4.3 to 6.0.1.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@5.4.3...6.0.1)

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

requirements/test.txt

@@ -1,4 +1,4 @@
-pytest==5.4.3
+pytest==6.0.1
 syrupy==0.6.0
 pyyaml==5.3.1
 pytest-mock==3.1.1