OESA-2026-4183 python-pymdown-extensions security update

Extension pack for Python Markdown. Security Fixes: PyMdown Extensions is a set of extensions for the Python-Markdown markdown project. From 10.0.1 until 10.21.3, pymdownx.snippets uses a string-prefix containment check in SnippetPreprocessor.getsnippetpath in pymdownx/snippets.py when...