Develop tests for PSS ProTest suitable for testing a Single Pulse pipeline

We have enabled automated testing of fully end-to-end SPS pipelines in ProTest using a test set that comprises 30 executions of cheetah. We have determined that our current CI setup is not capable of cacheing a dataset this size. For that reason we do not have a CI pipeline that executes these tests automatically. We have made plans instead to add a product testing step in our cheetah CI pipeline which uses PSS managed runner, allowing us to manage a cache of test vectors on the machine that will execute the tests. This will be implemented in a future PI. https://gitlab.com/ska-telescope/pss/ska-pss-protest/-/blob/main/src/ska_pss_protest/features/sps_mid_vector_dm_width.feature?ref_type=heads