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] <[email protected]>

requirements-dev.txt

@@ -6,7 +6,7 @@ h5py==2.10; implementation_name=='cpython'
 tables==3.6.1; implementation_name=='cpython'
 click>=7.0
 ruamel.yaml>=0.15.89
-pytest==5.4.3
+pytest==6.0.1
 pytest-subtests==0.3.1
 pydocstyle==5.0.2
 pytest-cov==2.10.0