Dependency List Job Failed Alert - Hide link to job if payload from API does not include `job_path`

What does this MR do?

A recent change to the API's response excluded the path to the failed job (job_path), if the current users permissions don't allow them to view the pipeline.

Related Discussion and MR:

• https://gitlab.com/gitlab-org/gitlab-ee/issues/12793
• https://gitlab.com/gitlab-org/gitlab-ee/issues/12250#note_201187623
• https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/15044/diffs

This MR adds a small frontend change to not display the link to the job within the alert that gets triggered if the pipeline for creating a dependency-list fails.

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content