Bump pytest-randomly from 3.7.0 to 3.8.0 (#83)

Bumps [pytest-randomly](https://github.com/pytest-dev/pytest-randomly) from 3.7.0 to 3.8.0.
- [Release notes](https://github.com/pytest-dev/pytest-randomly/releases)
- [Changelog](https://github.com/pytest-dev/pytest-randomly/blob/main/HISTORY.rst)
- [Commits](pytest-dev/pytest-randomly@3.7.0...3.8.0)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

poetry.lock

@@ -57,7 +57,7 @@ safety = "^1.10"
 
 pytest = "^6.2"
 pytest-cov = "^2.11"
-pytest-randomly = "^3.7"
+pytest-randomly = "^3.8"
 pytest-mypy-plugins = "^1.6"
 
 sphinx = "^3.5"