fix: 🐛 fix probabilities not loaded from API

[ianardee]

Fix probabilities not loaded from API

Description

API response was changed, probability is now confidence, we need to update the SDK.

We are not changing the Field.probability in the SDK for backwards compatibility.

This will be changed in the upcoming v2.

How Has This Been Tested

New unit tests added, all tests updated.

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[fharper]

LGTM, but I wasn't able to test it (pikepdf building issue on my machine, need to look at that)

[jonathanMindee]

Great job!

The naming "probability" in the FIeld attribute should be avoid in the future. I propose we put this in the backlog and change the probabiillty name for the V2 or the next release to "confidence.