Bump pymdown-extensions from 10.19.1 to v10.21

dghubble-renovate[bot] · web-flow · commit 4d640ab01a06 · 2026-02-23T04:21:23.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -1,4 +1,4 @@
 mkdocs==1.6.1
 mkdocs-material==9.7.1
 pygments==2.19.2
-pymdown-extensions==10.19.1
+pymdown-extensions==10.21
