chore(workflow): bump markdown version

duanhongyi · duanhongyi · commit 969bfc4a462f · 2022-07-18T14:12:02.000+08:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,4 @@
+markdown==3.2.1
 mkdocs==1.3.0
 PyYaml==6.0
 markdown-checklist==0.4.3
