Check CI ID

[dberenbaum]

_generate_ci_id generates a group_id field:

telemetry-python/src/iterative_telemetry/__init__.py

Line 333 in 41bcc87

def _generate_ci_id():

DVC uses this function directly:

https://github.com/iterative/dvc/blob/e362438f03d1bc7b9c54d091e37bca72ef410cde/dvc/analytics.py#L109

However, the group_id field is always null in the DVC analytics. Need to investigate further.