### What do you see as an issue?

In the `EcsRunTaskOperator`, one of the params in the docstring is `region_name`, but it should be `region`:

https://github.com/apache/airflow/blob/2.5.0/airflow/providers/amazon/aws/operators/ecs.py#L281

### Solving the problem

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

if self.capacity_provider_strategy:
            run_opts["capacityProviderStrategy"] = self.capacity_provider_strategy
        elif self.launch_type:
            run_opts["launchType"] = self.launch_type
        if self.platform_version is not None:
            run_opts["platformVersion"] = self.platform_version
        if self.group is not None:
            run_opts["group"] = self.group
        if self.placement_constraints is not None:
            run_opts["placementConstraints"] = self.placement_constraints
        if self.placement_strategy is not None:
            run_opts["placementStrategy"] = self.placement_strategy
        if self.network_configuration is not None:
            run_opts["networkConfiguration"] = self.network_configuration
        if self.tags is not None:
            run_opts["tags"] = [{"key": k, "value": v} for (k, v) in self.tags.items()]
        if self.propagate_tags is not None:
            run_opts["propagateTags"] = self.propagate_tags
        response = self.client.run_task(**run_opts)
        failures = response["failures"]
        if len(failures) > 0:
            raise EcsOperatorError(failures, response)
        self.log.info("ECS Task started: %s", response)
        self.arn = response["tasks"][0]["taskArn"]
        self.ecs_task_id = self.arn.split("/")[-1]
        self.log.info("ECS task ID is: %s", self.ecs_task_id)
        if self.reattach:
            
            self.xcom_push(context, key=self.REATTACH_XCOM_KEY, value=self.arn)
    def _try_reattach_task(self, context):