Actions before raising this issue

• I searched the existing issues and did not find anything similar.
• I read/searched the docs

Steps to Reproduce

1. Go to /api/cloudstorages/{id}/status in Swagger
2. Call this api for a cloud storage (in my case it was an S3 storage)
3. If the storage is not available, the result will be status 400 "Could not connect to the endpoint URL" instead of the "NOT_FOUND" string

Expected Behavior

The endpoint call returns values as specified in the schema.

Possible Solution

The schema itself should probably be improved to declare a enum for the resulting values.

Context

No response

Environment