Cumulus-etl

What's Changed
* fix: report an accurate bulk export duration in the logs by mikix in https://github.com/smart-on-fhir/cumulus-etl/pull/398


**Full Changelog**: https://github.com/smart-on-fhir/cumulus-etl/compare/v2.1.0...v2.1.1

Initial tagged release (we've had plenty of releases before, but not official tagged ones - tagging this here as a baseline for future tags).

We're now [available on PyPi](https://pypi.org/project/cumulus-etl/)!