chore(deps): update dependency pymdown-extensions to v10.21.2 (#25)

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

Author: renovate[bot]

requirements.txt

@@ -20,7 +20,7 @@ paginate==0.5.7
 pathspec==1.0.4
 platformdirs==4.9.2
 Pygments==2.19.2
-pymdown-extensions==10.21
+pymdown-extensions==10.21.2
 python-dateutil==2.9.0.post0
 PyYAML==6.0.3
 pyyaml_env_tag==1.1