convert floating point stats from string

[louisadamian]

Convert floating stats with decimal representation from str to float with pydantic

adds a BeforeValidator to base.py that converts types to float or returns none and an OptionalFloat type that used the validator and changed all the relevant types in stat objects.

Tests

Passes all unit tests.

[Mattsface]

I've gone ahead and removed the broken workflows and scripts that was causing the CI failure.

Can you pull them down for the PR and run it?

Also thank you for the PR :)

[louisadamian]

Thanks, I merged in your upstream changes, but I can't trigger any workflows.