[pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/jackdewinter/pymarkdown: v0.9.28 → v0.9.29](jackdewinter/pymarkdown@v0.9.28...v0.9.29)

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -9,7 +9,7 @@ repos:
       - id: check-yaml
       - id: check-added-large-files
   - repo: https://github.com/jackdewinter/pymarkdown
-    rev: v0.9.28
+    rev: v0.9.29
     hooks:
       - id: pymarkdown
         args: