1. Add checkpoint in snapshot E2E test to verify snapshot CR should be created and snapshot should be created in cloud side after backup completion;
2. Fix snapshot name issue that CSI snapshot name in cloud side is not the same with other non-CSI cloud snapshots;
Signed-off-by: danfengl <danfengl@vmware.com>
Test case description is "Deleted backups are deleted from object storage and backups deleted from object storage can be deleted locally",
in this test, only resource backup objects are target for verifition, restic repo verification is not included in this PR, and snapshot verification will be in later PR
Signed-off-by: danfengl <danfengl@vmware.com>
