Make audio classification pipeline spec-compliant and add test (#33730)
* Make audio classification pipeline spec-compliant and add test
* Check that test actually running in CI
* Try a different pipeline for the CI
* Move the test so it gets triggered
* Move it again, this time into task_tests!
* make fixup
* indentation fix
* comment
* Move everything from testing_utils to test_pipeline_mixin
* Add output testing too
* revert small diff with main
* make fixup
* Clarify comment
* Update tests/pipelines/test_pipelines_audio_classification.py
Co-authored-by: Lucain <lucainp@gmail.com>
* Update tests/test_pipeline_mixin.py
Co-authored-by: Lucain <lucainp@gmail.com>
* Rename function and js_args -> hub_args
* Cleanup the spec recursion
* Check keys for all outputs
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Co-authored-by: Lucain <lucainp@gmail.com>