uses the count bus in the kopia backup package.
This currently duplicates counts that we're getting
from the kopia stats. A later pr will remove the old
stats entirely in favor of the counter.
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#### Does this PR need a docs update or release note?
- [x] ⛔ No
#### Type of change
- [x] 🧹 Tech Debt/Cleanup
#### Test Plan
- [x] ⚡ Unit test
- [x] 💚 E2E