test: added E2E tests for Azurite

- ScheduledBackups suspended
- ScheduledBackups using immediate option
- Restore cluster from barmanObjectStore with External clusters
- Restore cluster with PITR from barmanObjectStore with External clusters

Co-authored-by: Danish Khan <danish.khan@enterprisedb.com>
Co-authored-by: Gabriele Quaresima <gabriele.quaresima@enterprisedb.com>

Author: 3 people