Ceph » crimson

Introduced in https://github.com/ceph/ceph/pull/49116,
The following test groups have been omitted (commented out) from ceph_test_librbd:

• DiffIterateTest
• TestDeepCopy
• TestMigration

Instead of using "test_crimson_librbd.sh" we should re-use the common "rbd/test_librbd.sh" with all tests enabled and revise which tests are ok to enable.
For the ones which are still failing, let's open a dedicated tracker for each test instead of skipping the entire group as before.
This will allow us to become more aware of unsupported test cases.
Example of newly opened trackers:
https://tracker.ceph.com/issues/72041

We can close this tracker once the switch to test_librbd.sh is green and then, track the opened trackers separately.