⬆️ Update markdown-it-py v4

Author: chrisjsewell

pyproject.toml

@@ -36,8 +36,8 @@ requires-python = ">=3.10"
 dependencies = [
     "docutils>=0.19,<0.22",
     "jinja2", # required for substitutions, but let sphinx choose version
-    "markdown-it-py~=3.0",
-    "mdit-py-plugins~=0.4,>=0.4.1",
+    "markdown-it-py~=4.0",
+    "mdit-py-plugins~=0.5",
     "pyyaml",
     "sphinx>=7,<9",
 ]