MAINT: Enhance type hinting across auth and analytics modules

[ytc338]

Description

Added type hints to various functions in auth and analytics. And added explicit cast to satisfy mypy.
#1272
@romanlutz
The only thing I think requires further notice is cosine_similarity function in pyrit/analytics/conversation_analytics.py The type hint was this to return a np.ndarry. I looked into the reference the inputs are always 1D arrays so the return type is float. Let me know what do you think. Thanks.

Tests and Documentation

The changes passed the pre-commit run mypy --files pyrit/auth/*.py and pre-commit run mypy --files pyrit/analytics/*.py
with --strict in pre-commit args.

[ytc338]

@microsoft-github-policy-service agree

[romanlutz]

This is great! The result_analysis.py return types will probably change over time but for now it's accurate 🙂

I'm worried about people breaking this. Can we add an extra step to pre-commit config to run in strict mode for the modules that are done? Then every PR for the corresponding item #1272 can expand to further modules? Ideally, we'd exclude the same modules from the existing mypy check, of course, to avoid running it twice.

[ytc338]

Great I'll keep working on other modules and add an extra hook in pre-commit-config.