What's Changed
* Improved regression test infrastructure
* Used roman_datamodels for manipulating Roman image objects
* Added Casertano+22-style ramp fitting, including respecting flagged pixels
* Propagated pixels affected by saturation and CR hits to ramp fitting.
In more detail...
* use built-in concurrency configuration for duplicate workflows by zacharyburnett in https://github.com/spacetelescope/romanisim/pull/44
* add regtests for Jenkins job by zacharyburnett in https://github.com/spacetelescope/romanisim/pull/33
* RCAL-388 Integrate RDM Usage to RomanISim by PaulHuwe in https://github.com/spacetelescope/romanisim/pull/43
* Remove romancal dependency. by schlafly in https://github.com/spacetelescope/romanisim/pull/46
* Add Casertano+22 style ramp fitting to the simulator. by schlafly in https://github.com/spacetelescope/romanisim/pull/48
* fix readthedocs configuration by zacharyburnett in https://github.com/spacetelescope/romanisim/pull/52
* test against pre-built binaries of `numpy` by zacharyburnett in https://github.com/spacetelescope/romanisim/pull/50
* Propagate DQ information from image simulation to ramp fitting. by schlafly in https://github.com/spacetelescope/romanisim/pull/49
* revert astropy prerelease wheel spec and use nightly Scipy wheel index by zacharyburnett in https://github.com/spacetelescope/romanisim/pull/53
* Migrate from roman_datamodels units to astropy units. by schlafly in https://github.com/spacetelescope/romanisim/pull/54
* Update tests to be less noisy by schlafly in https://github.com/spacetelescope/romanisim/pull/55
**Full Changelog**: https://github.com/spacetelescope/romanisim/compare/v0.2.0...v0.2.1