Bump pytest-randomly from 2.1.1 to 3.0.0 (#63)

Bumps [pytest-randomly](https://github.com/pytest-dev/pytest-randomly) from 2.1.1 to 3.0.0.
- [Release notes](https://github.com/pytest-dev/pytest-randomly/releases)
- [Changelog](https://github.com/pytest-dev/pytest-randomly/blob/master/HISTORY.rst)
- [Commits](pytest-dev/pytest-randomly@2.1.1...3.0.0)

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

Author: dependabot[bot]

poetry.lock

@@ -45,7 +45,7 @@ safety = "^1.8"
 
 pytest = "^4.4"
 pytest-cov = "^2.6"
-pytest-randomly = "^2.1"
+pytest-randomly = "^3.0"
 
 sphinx = "^2.0"
 sphinx-autodoc-typehints = "^1.6"