## What changed?
Add revision number to Worker Deployment Version Data that is synced to
Task Queues.
## Why?
This allows making task queue registration also async, but more
importantly, it prevent's race conditions between concurrent
registrations, setCurrent/Ramping, drainage, and deletion.
## How did you test it?
- [ ] built
- [ ] run locally and tested manually
- [ ] covered by existing tests
- [x] added new unit test(s)
- [ ] added new functional test(s)
## Potential risks
None.
