Bump markdown from 3.6 to 3.7

Bumps [markdown](https://github.com/Python-Markdown/markdown) from 3.6 to 3.7.
- [Release notes](https://github.com/Python-Markdown/markdown/releases)
- [Changelog](https://github.com/Python-Markdown/markdown/blob/master/docs/changelog.md)
- [Commits](Python-Markdown/markdown@3.6...3.7)

---
updated-dependencies:
- dependency-name: markdown
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

poetry.lock

@@ -41,7 +41,7 @@ flake8-black = "^0.3"
 invoke = "^2.2"
 isort = "^5.4"
 livereload = "^2.7"
-markdown = "^3.2, != 3.3.5"
+markdown = "^3.7"
 pytest = "^8.3.3"
 pytest-cov = "^5.0"
 pytest-pythonpath = "^0.7"