Update pre-commit hook jackdewinter/pymarkdown to v0.9.38 #6236

Job	Run time
Cache identify	5s
Shellcheck	6s
Dependency	4s
Prepare	20s
Ruff check and force	9s
Check commit	26s
Run pytest using Python 3.13	31s
Run pytest using Python 3.14	15s
Run mypy	12s
Process test coverage	14s
Process test complexity	12s
Build and publish Python 🐍 distributions 📦 to TestPyPI	11s
	2m 45s

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