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

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

Author: renovate[bot]

requirements.txt

@@ -14,7 +14,7 @@ markdown-graphviz-inline==1.1.3
 mkdocs-monorepo-plugin==1.1.2
 plantuml-markdown==3.11.1
 mdx_truly_sane_lists==1.3
-pymdown-extensions==10.21
+pymdown-extensions==10.21.2
 pygments==2.20.0
 mkdocs-redirects==1.2.2