Improve workflow existence check to prevent misleading 404 logs

[JBBianchi]

What would you like to be added:
Explore alternative ways to check workflow existence that do not rely on a 404 response.

Why is this needed:
In the component used for creating or updating a "workflow," a server query is made upon user submission to determine if the workflow already exists. This determines whether to proceed with an update or a creation.

However, when the workflow does not exist (i.e., a creation scenario), the server responds with a 404, which generates a misleading log entry. While the functionality works as intended, the 404 response could be avoided to reduce noise in the logs and improve clarity.