chore: Update dependencies

Author: pawamoy

pyproject.toml

@@ -18,13 +18,13 @@ keywords = ["mkdocs", "mkdocs-plugin", "docstrings", "autodoc"]
 packages = [ { include = "mkdocs_autorefs", from = "src" } ]
 
 [tool.poetry.dependencies]
-python = "^3.6"
+python = "^3.6.2"
 Markdown = "^3.3"
 mkdocs = "^1.1"
 
 [tool.poetry.dev-dependencies]
 autoflake = "^1.4"
-black = "^20.8b1"
+black = "^21.12b0"
 duty = "^0.6.0"
 flakehell = "^0.9.0"
 flake8-black = "^0.2.1"