Change log level from error to warning for unactionable cloud connector access errors

Problem

The CloudConnectorAccess::Service class logs several errors that are unactionable for us and create unnecessary noise in error tracking.

These errors represent expected validation failures during the cloud connector access flow rather than system issues that require immediate attention.

Solution

Change the log level from error to warning for unactionable error messages in the cloud connector access service to reduce alert noise while maintaining visibility for debugging purposes.

Files to modify

• app/services/cloud_connector_access/service.rb