Update Evals SDK

[EricGustin]

PR Description

This PR renames ExpectedToolCall to NamedExpectedToolCall and then creates a new dataclass called ExpectedToolCall. ExpectedToolCall can be passed to the EvalSuite.add_case and EvalSuite.extend_case methods.

1. Enhance EvalSuite.add_case and EvalSuite.extend_case by accepting a list of ExpectedToolCall as their expected_tool_calls input parameter. This helps create a scaffolding for developers. Previously, the expected type was list[tuple[Callable, dict[str, Any]]], which is still valid for backward compatibility.

# Before (still valid for backward compatibility)
expected_tool_calls=[
    (
        adjust_playback_position,
        {
            "absolute_position_ms": 10000,
        },
    )
]
        

# After
expected_tool_calls=[
    ExpectedToolCall(
        func=adjust_playback_position,
        args={"absolute_position_ms": 10000},
    )
]

2. Removed any references to arcade.core in toolkits directory.
3. Some linting for import organization.

[EricGustin]

Copy of what ExpectedToolCall used to be.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

📢 Thoughts on this report? Let us know!

[nbarbettini]

Thanks for adding tests!

[nbarbettini]

Thanks 💯