Ah damn – this is an error that we initially tried to fix with the recent update to spaCy and Thinc. Looks like this is the same problem described in this thread – can you try downgrading Thinc to 6.8.1?
pip uninstall thinc
pip install thinc=6.8.1
Sorry again 
We’re currently working hard on getting an update ready for both spaCy and Prodigy that resolves those compatibility issues.