[BUG] NaN hypergraph node eventid

[lmeyerov]

Describe the bug

In hyper(cudf.DataFrame({'x': ['a'], 'y': ['c']}), direct=True), nodes have 'EventID': 'NaN' instead of 0 / EventID::0

Additional context

See forge-etl-python::test_edges_to_hypergraph_cudf

[lmeyerov]

This impacts file uploader users

[lmeyerov]

Maybe related, but supposedly already fixed in 0.19: https://github.com/graphistry/pygraphistry/issues/226