changes
* Add visualization widgets to catalog through publish.py (450)
* Base Intake source for Rubicon Visualization Objects (451)
* Work to deprecate pickle flag (459)
* Polars writing (460)
* Created an Intake Source for Experiment Table (456)
* allow additional AWS CLI config via `sync` (462)
* Add XGBoost JSON Reader/writer (461)
* Changes by run-edgetest action (452, 457)
bugfixes
* guard viz import and fix prefect dependency (463)