Bump markdown-it-py from 3.0.0 to 4.0.0

Bumps [markdown-it-py](https://github.com/executablebooks/markdown-it-py) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/executablebooks/markdown-it-py/releases)
- [Changelog](https://github.com/executablebooks/markdown-it-py/blob/master/CHANGELOG.md)
- [Commits](executablebooks/markdown-it-py@v3.0.0...v4.0.0)

---
updated-dependencies:
- dependency-name: markdown-it-py
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

constraints.txt

@@ -16,7 +16,7 @@ httpx==0.28.1
 idna==3.10
 iniconfig==2.1.0
 Jinja2==2.10.3
-markdown-it-py==3.0.0
+markdown-it-py==4.0.0
 MarkupSafe==2.0.1
 mdurl==0.1.2
 netifaces==0.11.0

pyproject.toml

@@ -32,7 +32,7 @@ dependencies = [
     "babel==2.12.1",          # http://babel.pocoo.org/en/latest/changelog.html
     "pyxdg>=0.26,<0.29",      # https://freedesktop.org/wiki/Software/pyxdg/
     "Jinja2>=2.10,<2.11",     # http://jinja.pocoo.org/docs/latest/changelog/
-    "markdown-it-py==3.0.0",  # https://github.com/executablebooks/markdown-it-py/blob/master/CHANGELOG.md
+    "markdown-it-py==4.0.0",  # https://github.com/executablebooks/markdown-it-py/blob/master/CHANGELOG.md
     "setuptools>=80,<81",     # https://setuptools.pypa.io/en/latest/history.html
 
     # See https://github.com/pallets/markupsafe/issues/286 but breaking change in