NSFS | Versioning | Concurrent delete latest & delete object by ID which is also the latest

[romayalon]

Environment info

• NooBaa Version: 4.18
• Platform: All

Actual behavior

1. During an effort of addition of concurrency tests (PR - NSFS | Versioning | Concurrency tests #8405), a test called concurrent delete objects by version id/latest is failing and currently being skipped, this test/scenario should be invesitigated and fixed.
   The failure is that we are not deleting the version and we just move it to .versions/.

Expected behavior

1. A user creates one version of an object.
2. After concurrent delete latest & delete object by ID which is also the latest NooBaa should create a delete marker and delete the existing version id.

Steps to reproduce

1. Check the steps mentioned on concurrent delete objects by version id/latest.

More information - Screenshots / Logs / Other output