Changes to conftest.py for translate tests

[fmalatino]

Description The conftest.py file for the translate tests has been changed to match centralized test structure in NDSL.

How Has This Been Tested? Tested with the current translate test structure triggering the appropriate downstream repositories. Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] Any dependent changes have been merged and published in downstream modules
• [x] New check tests, if applicable, are included
• [x] Targeted model if this changed was triggered by a model need/shortcoming