build(deps): update griffe requirement in /pywry/docs (#21)

Updates the requirements on [griffe](https://github.com/mkdocstrings/griffe) to permit the latest version.
- [Release notes](https://github.com/mkdocstrings/griffe/releases)
- [Changelog](https://github.com/mkdocstrings/griffe/blob/main/CHANGELOG.md)
- [Commits](mkdocstrings/griffe@1.0.0...2.0.2)

---
updated-dependencies:
- dependency-name: griffe
  dependency-version: 2.0.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pywry/docs/requirements.txt

@@ -5,7 +5,7 @@ mkdocs-autorefs>=1.0.0
 
 # Auto-generated API documentation from source
 mkdocstrings[python]>=0.26.0
-griffe>=1.0.0
+griffe>=2.0.2
 
 # For cross-references
 mkdocs-gen-files>=0.5.0