Motivation

Adds missing support for StepFunction's UpdateStateMachine api calls, contributing to the greenification of #8779, which sets StepFunction v2 as default provider.

Changes

In v2 provider:

• implementation of update_state_machine endpoint
• cleanups regarding the validation of definitions that now occurs in 2 places (creation and update)
• other minor changes including deepcopying state machines on execution to prevent future updated to change their parameters (as instructed by AWS)

In state machine:

• added required logic for revision injection
• moved description output here from the provider to fit the design pattern of executions

Testing

Added base snapshot scenarios about update_state_machine:

• test_create_update_state_machine_base_definition
• test_create_update_state_machine_base_role_arn
• test_create_update_state_machine_base_definition_and_role
• test_create_update_state_machine_base_update_none
• test_create_update_state_machine_same_parameters