Cannot differentiate between an inexistant and an unfinished execution

[omar-chahbouni-decathlon]

Describe the bug When checking an execution quality status, it is not possible to differentiate between an inexistant execution (via job url) and unfinished execution. In both case, the response is STILL_COMPUTING. This is misleading.

To Reproduce Steps to reproduce the behavior:

1. Open your ARA Swagger
2. Go to execution-resource
3. Go to GET /api/projects/{projectCode}/executions/quality-status (getQualityStatus)
4. In the projectCode field, type a valid project code but an invalid url in the jobUrl field

Expected behavior Inexistant executions should return a different status, such as UNKNOWN.

Screenshots