Update dependency markdown-it-py to v4 (#735)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements.txt

@@ -1,7 +1,7 @@
 beautifulsoup4==4.12.3 ; python_version >= "3.9" and python_version < "4.0"
 click==8.1.7 ; python_version >= "3.9" and python_version < "4.0"
 colorama==0.4.6 ; python_version >= "3.9" and python_version < "4.0"
-markdown-it-py==3.0.0 ; python_version >= "3.9" and python_version < "4.0"
+markdown-it-py==4.0.0 ; python_version >= "3.9" and python_version < "4.0"
 mdurl==0.1.2 ; python_version >= "3.9" and python_version < "4.0"
 pygments==2.17.2 ; python_version >= "3.9" and python_version < "4.0"
 rich==13.7.1 ; python_version >= "3.9" and python_version < "4.0"