Refresh docs dependencies

Author: mdmintz

mkdocs_build/requirements.txt

@@ -17,7 +17,7 @@ click==8.1.3
 zipp==3.8.0
 ghp-import==2.1.0
 readme-renderer==35.0
-pymdown-extensions==9.4
+pymdown-extensions==9.5
 importlib-metadata==4.11.4
 bleach==5.0.0
 jsmin==3.0.1