Fix python-checks failure by normalizing Ruff formatting in model install test

[Copilot]

Summary

python-checks failed in CI because ruff format --check reported tests/app/services/model_install/test_model_install.py as not formatted. This PR applies the minimal formatting-only correction so the workflow passes consistently.

• Root cause

  • ruff@0.11.2 format --check required one additional blank line between top-level test functions in tests/app/services/model_install/test_model_install.py.

• Change made

  • Applied Ruff-compliant whitespace normalization in the affected test file.
  • No behavior or test logic changes.

        release_restore.set()
        installer.stop()


def test_huggingface_blob_url_uses_resolve_download_url(...):

Related Issues / Discussions

N/A

QA Instructions

Run the same CI command locally:

uv tool run ruff@0.11.2 format --check .

Merge Plan

Normal merge; no special sequencing required.

Checklist

• The PR has a short but descriptive title, suitable for a changelog
• Tests added / updated (if applicable)
• ❗Changes to a redux slice have a corresponding migration
• Documentation added / updated (if applicable)
• Updated What's New copy (if doing a release after this PR)