Add import duration panel to GithubImporter dashboard
To help monitor Github import performance this MR adds the import duration and the counter of successfully imported projects to the Github Importer dashboard.
- Related to: gitlab-org/gitlab#340624 (closed)
- Snapshot: https://dashboards.gitlab.net/dashboard/snapshot/RhS9dMpTUlXxUf2NIDv0vGqcgP4oF2rp?orgId=1&from=now-2d&to=now
- Screenshot:
Edited by Kassio Borges