fix(type-annotations): add missing _ExpandedRequestOptions.refresh

[alessio-locatelli]

Closes #395

Only Pyright complained about this attribute. mypy and ty did not complain.

[alessio-locatelli]

CI failed due to the pip-audit (unrelated to the changes).

[JWCook]

Thanks for taking care of that!

I'll fix the pip-audit issue; we just need to pass it inputs: . so it checks the only the project dependencies instead of the whole virtualenv (which includes dependencies that the action itself installs).