check-yaml fix

Author: cclauss

.pre-commit-config.yaml

@@ -5,7 +5,7 @@ repos:
       - id: check-json
       - id: check-xml
       - id: check-yaml
-        exclude: ^mkdocs.yml$
+        args: [--unsafe]  # allow !!python/name:... tags in mkdocs.yml 
       - id: end-of-file-fixer
       - id: trailing-whitespace
   - repo: https://github.com/astral-sh/ruff-pre-commit