chore(sdk): fix test missing tempdir cleanup (#7403)
chore(sdk): fix test missing tempdir cleanup (#7403)

* chore(sdk): fix test missing tempdir cleanup

* fix test path

* fix test path

* clean up setUp method

* change string placeholder from s to test_dir
kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines,kubeflow/pipelines