build(deps-dev): bump mkdocs-gen-files from 0.4.0 to 0.5.0

Bumps [mkdocs-gen-files](https://github.com/oprypin/mkdocs-gen-files) from 0.4.0 to 0.5.0.
- [Release notes](https://github.com/oprypin/mkdocs-gen-files/releases)
- [Commits](oprypin/mkdocs-gen-files@v0.4.0...v0.5.0)

---
updated-dependencies:
- dependency-name: mkdocs-gen-files
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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