feat: add arniqa

[begumcig]

Description

This PR adds support for the arniqa image quality metric. Since ARNIQA uses an internal dataset, it now runs with the new call_type="y" (output-only).

Type of Change

• 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 not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[davidberenstein1957]

Hi, looks good. Should we update the documentation somewhere?

[davidberenstein1957]

LFTM

[github-actions]

This PR has been inactive for 10 days and is now marked as stale.

[sharpenb]

That looks very nice! If you can just fix the two comments before merging that would be perfect :)

[sharpenb]

Could we say "Stateful metrics can generally be evaluated in single-model and pariwise modes. Single-mode allows to compare a mode against ground-truth data, while pairwise mode allows to compare the fidelity of model against another model. "

[sharpenb]

My suggestion would be to return an error here instead of silently fixing the problem :)

[begumcig]

Makes so much sense! I also moved throwing this error to the general utils file where i check call types for all metrics, so we would throw this error not just for tochmetrics but for all of our metrics!