Bump sphinxcontrib-mermaid from 0.6.3 to 0.7 (#92)

Bumps [sphinxcontrib-mermaid](https://github.com/mgaitan/sphinxcontrib-mermaid) from 0.6.3 to 0.7.
- [Release notes](https://github.com/mgaitan/sphinxcontrib-mermaid/releases)
- [Changelog](https://github.com/mgaitan/sphinxcontrib-mermaid/blob/master/CHANGELOG.rst)
- [Commits](mgaitan/sphinxcontrib-mermaid@0.6.3...0.7)

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

Author: dependabot-preview[bot]

poetry.lock

@@ -62,7 +62,7 @@ pytest-mypy-plugins = "^1.7"
 
 sphinx = "^4.0"
 sphinx-autodoc-typehints = "^1.12"
-sphinxcontrib-mermaid = "^0.6.3"
+sphinxcontrib-mermaid = "^0.7"
 sphinx-typlog-theme = "^0.8.0"
 doc8 = "^0.8.1"
 m2r2 = "^0.2.7"