Merge pull request #370 from backstage/renovate/plantuml-markdown-3.x

chore(deps): update dependency plantuml-markdown to v3.11.3

Author: awanlin

requirements.txt

@@ -13,7 +13,7 @@ mkdocs-material==9.7.7
 markdown-graphviz-inline==1.1.3
 mkdocs-github-admonitions-plugin==0.1.1
 mkdocs-monorepo-plugin==1.1.2
-plantuml-markdown==3.11.2
+plantuml-markdown==3.11.3
 mdx_truly_sane_lists==1.3
 pymdown-extensions==12.3
 pygments==2.21.0