[ENH] Refactor `OpenMLParameter` to Use Dataclass

[SimonBlanke]

Same reasoning as #1540. The class structure is basically identical.

[rohansen856]

I would be working on this issue. Thanks.

[rohansen856]

Solved the issue locally. But the pytests are failing (existing issue #1544) would raise the PR once progress is made on the tests.

[siddharthbaleja7]

@fkiraly can you assign this issue to me?

[tiya-9975]

Hi @fkiraly,

I’m interested in working on this issue. I saw that a previous implementation was blocked due to failing tests (#1544), and I’ll take that into account while working on the fix.

Proposed approach:

Refactor the class structure to follow the same pattern as in #1540, since the structure is identical.

Introduce dataclass-based implementation for consistency and maintainability.

Ensure backward compatibility with the existing API.

Run and validate the test suite, and coordinate with the ongoing test fixes if needed.

Please let me know if I can proceed with this.

Thanks!