chore(deps): update dependency markdown to v3.8.1 [security]

Author: renovate-bot

run/markdown-preview/renderer/requirements.txt

@@ -1,6 +1,6 @@
 Flask==3.1.3; python_version >= '3.9'
 gunicorn==23.0.0
-Markdown==3.7
+Markdown==3.8.1
 bleach==6.2.0; python_version >= "3.9"
 bleach==6.1.0; python_version <= "3.8"
 Werkzeug==3.1.8; python_version >= '3.9'