Merge pull request #242 from backstage/renovate/pymdown-extensions-10.x

chore(deps): update dependency pymdown-extensions to v10.13

Author: awanlin

requirements.txt

@@ -14,7 +14,7 @@ markdown_inline_graphviz_extension@git+https://github.com/cesaremorel/markdown-i
 mkdocs-monorepo-plugin==1.1.0
 plantuml-markdown==3.10.4
 mdx_truly_sane_lists==1.3
-pymdown-extensions==10.12
+pymdown-extensions==10.13
 pygments==2.17.2
 mkdocs-redirects==1.2.2