chore: lint

docs/source/conf.py

+from typing import List
+
 # Configuration file for the Sphinx documentation builder.
 #
 # For the full list of built-in configuration values, see the documentation:
@@ -20,7 +22,7 @@ extensions = [
 ]
 
 templates_path = ["_templates"]
-exclude_patterns = []
+exclude_patterns: List[str] = []
 
 
 # -- Options for HTML output -------------------------------------------------