Bump markdown-it-py from 1.1.0 to 2.2.0

Bumps [markdown-it-py](https://github.com/executablebooks/markdown-it-py) from 1.1.0 to 2.2.0.
- [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@v1.1.0...v2.2.0)

---
updated-dependencies:
- dependency-name: markdown-it-py
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.docs.txt

@@ -52,7 +52,7 @@ jupyterlab-widgets==1.1.1  # via ipywidgets
 latexcodec==2.0.1         # via pybtex
 linkify-it-py==1.0.3      # via jupyter-book
 lxml==4.9.1               # via nbconvert
-markdown-it-py==1.1.0     # via mdit-py-plugins, myst-parser
+markdown-it-py==2.2.0     # via mdit-py-plugins, myst-parser
 markupsafe==2.1.1         # via jinja2, nbconvert
 matplotlib-inline==0.1.3  # via ipykernel, ipython
 mdit-py-plugins==0.2.8    # via myst-parser

requirements.txt

@@ -64,7 +64,7 @@ latexcodec==2.0.1         # via pybtex
 libcst==0.4.5             # via hypothesmith
 linkify-it-py==1.0.3      # via jupyter-book
 lxml==4.9.1               # via nbconvert
-markdown-it-py==1.1.0     # via mdit-py-plugins, myst-parser
+markdown-it-py==2.2.0     # via mdit-py-plugins, myst-parser
 markupsafe==2.1.1         # via jinja2, nbconvert
 matplotlib-inline==0.1.3  # via ipykernel, ipython
 mccabe==0.6.1             # via flake8