Define MODULE_LOCATOR constant and implement #5038

Job	Run time
Prepare	48s
Shellcheck	4s
Dependency	4s
Ruff check and force	5s
Check commit	26s
Create pytest cache for Python 3.12	5s
Run pytest using Python 3.12	14s
Process test coverage	13s
Run mypy	10s
Process test complexity	9s
Build and publish Python 🐍 distributions 📦 to TestPyPI	20s
	2m 38s

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