20139 - organize aws step_function

[bhavaniravi]

Part of #20139

Move step_function_* operators and sensors to step_function.py

[eladkal]

You are also missing edits to the test files of the operators / sensors.

Sensor:
https://github.com/apache/airflow/blob/main/tests/providers/amazon/aws/sensors/test_step_function_execution.py
should also be renamed and fix imports.

Operators:
https://github.com/apache/airflow/blob/main/tests/providers/amazon/aws/operators/test_step_function_get_execution_output.py

https://github.com/apache/airflow/blob/main/tests/providers/amazon/aws/operators/test_step_function_start_execution.py

also since the classes are small we can have both of them in a single test_step_function.py and we can remove the two individual test files.

[eladkal]

@bhavaniravi could you please address also the comments on test files?

[bhavaniravi]

@bhavaniravi could you please address also the comments on test files?

Yes on it.

[eladkal]

LGTM

[github-actions]

The PR most likely needs to run full matrix of tests because it modifies parts of the core of Airflow. However, committers might decide to merge it quickly and take the risk. If they don't merge it quickly - please rebase it to the latest main at your convenience, or amend the last commit of the PR, and push it with --force-with-lease.