Added new method to retrieve the course runs for a course based on UUID

This method will retrieve the Course Run information from the Discovery
service based on a Courses UUID.

[LEARNER-3160]

openedx/core/djangoapps/catalog/utils.py

@@ -233,7 +233,7 @@ def get_course_runs_for_course(course_uuid):
             resource_id=course_uuid,
             api=api,
             cache_key=cache_key if catalog_integration.is_cache_enabled else None,
-            long_term_cache=True
+            long_term_cache=True,
         )
 
         return data.get('course_runs', [])