Regenerate *.repr files using updated proper_repr for numpy ndarray. #19
Description
Copied from quantumlib/Cirq #6049
Description of the issue
quantumlib#5991 updates proper_repr for numpy types. As a result, all repr files should be regenerated using the new proper_repr methods. This issue is to unblock the PR and track the changes to .repr files independently.
See quantumlib#5991 (comment) for more details.