Description of problem:
The running migration plan hangs and other migration plans cannot start when the guest migration fails in the ImageConversion phase and the PVC status remains pending

Version-Release number of selected component (if applicable):
MTV 2.8.0
OCP 4.17.24

How reproducible:

50%

Steps to Reproduce:
1. Create a migration plan to migrate some guest from VMware on MTV

2. One migration of the plan is failed in the ImageConversion phase due to bug RHEL-28070 and the PVC status remains pending


3. Found the running migration plan hangs (the percent of migration status hasn't changed for a long time ) and other migration plans cannot start 

Actual results:
As above description

Expected results:

Fix the bug