chore(deps): update dependency mkdocs-gen-files to ^0.4.0

Author: renovate[bot]

poetry.lock

@@ -49,7 +49,7 @@ mkdocstrings-python = "^0.7.0"
 mkdocs-pymdownx-material-extras = "^2.0"
 mkdocs-same-dir = "^0.1.1"
 mkdocs-include-markdown-plugin = "^3.3.0"
-mkdocs-gen-files = "^0.3.4"
+mkdocs-gen-files = "^0.4.0"
 mkdocs-autolinks-plugin = "^0.6.0"
 mkdocs-minify-plugin = "^0.5.0"
 mkdocs-git-revision-date-localized-plugin = "^1.0.0"