## Description
If gc.stats reports a non-zero error count at the
end of a backup, retrieve the error from the
status and return it as the backup operation err.
## Does this PR need a docs update or release note?
- [x] ⛔ No
## Type of change
- [x] 🐛 Bugfix
## Test Plan
- [x] ⚡ Unit test
- [x] 💚 E2E