Display proper error messages to users on receiving a 403 response while fetching vulnerabilities
On the pipelines/:pipeline_id/security
endpoint, if the user does not have proper access to view the security reports we return a 403 response from the backend.
The user sees the following error message: Error fetching the vulnerability list. Please check your network connection and try again.
Expected error message: Unable to fetch the vulnerability list. You do not have permission to view it due to this project's settings. Please contact the project maintainer for access.