Bump sphinx from 3.4.3 to 3.5.0 (#59)

Bumps [sphinx](https://github.com/sphinx-doc/sphinx) from 3.4.3 to 3.5.0.
- [Release notes](https://github.com/sphinx-doc/sphinx/releases)
- [Changelog](https://github.com/sphinx-doc/sphinx/blob/3.x/CHANGES)
- [Commits](sphinx-doc/sphinx@v3.4.3...v3.5.0)

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

Author: dependabot-preview[bot]

poetry.lock

@@ -60,7 +60,7 @@ pytest-cov = "^2.11"
 pytest-randomly = "^3.5"
 pytest-mypy-plugins = "^1.6"
 
-sphinx = "^3.4"
+sphinx = "^3.5"
 sphinx-autodoc-typehints = "^1.11"
 sphinxcontrib-mermaid = "^0.6.1"
 sphinx-typlog-theme = "^0.8.0"