Fixes
* path to the sh script for set_provider_credentails task
* override of black formatting
Refactorings
* legacy bash approach removal
Others
* update changelog ([373](https://github.com/hamlet-io/executor-python/issues/373))
* liniting cleanup
* foramtting cleanups
* formatting cleanup
Full set of changes: [`9.25.4...10.0.0`](https://github.com/hamlet-io/executor-python/compare/9.25.4...10.0.0)