As an attempt with a "failed" status allows a new attempt in SCORM to be generated and a score is being generated we should be updating the score in the gradebook.

the code was added here:
https://github.com/moodle/moodle/commit/7e51170aec645608710b3b84773327598fd2fba5#diff-2a9b3d8e64715a5201c426403c991c17

a raw_score being passed will also result in the gradebook being updated but there are cases where SCORM packages don't pass a raw_score and will likely still need a grade passed to the gradebook.