Example repo for pydantic/pydantic#10970

This is a very simple example to reproduce the error, just need to have uv installed:

• uv sync to install both packages
• uv run hello.py to check that is running as expected
• uv run mypy . to check that mypy is raising an error

There is a branch pydantic-2.9.2 to show that the error is not present in that version.