Add tests with minimum dependency versions

[robin-nitrokey]

In the CI builds, we check that both the lockfile and the latest dependency versions work. It would good to also run it for the minimum versions specified in pyproject.toml, but this is currently not supported by poetry or pip:

• Support lock dependencies with lowest solvable versions python-poetry/poetry#3527
• Add a resolver option to use the specified minimum version for a dependency pypa/pip#8085