### Description

Airflow provides the Amazon DynamoDB to Amazon S3 below.  
https://airflow.apache.org/docs/apache-airflow-providers-amazon/stable/operators/transfer/dynamodb_to_s3.html

Most of Data Engineer build their "export DDB data to s3" pipeline using "within the point in time recovery window".   
https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/dynamodb.html#DynamoDB.Client.export_table_to_point_in_time

I appreciate if airflow has this function as a native function.  

### Use case/motivation

My daily batch job exports its data with pitr option. All of tasks is written by apache-airflow-providers-amazon except "export_table_to_point_in_time" task. 
"export_table_to_point_in_time" task only used the python operator. I expect I can unify the task as apache-airflow-providers-amazon library. 

### Related issues

_No response_

### Are you willing to submit a 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)

dag = DAG("test_render_template_dag_id", start_date=datetime(2020, 1, 1))
        operator = DynamoDBToS3Operator(
            task_id="dynamodb_to_s3_test_render",
            dag=dag,
            dynamodb_table_name="{{ ds }}",
            s3_key_prefix="{{ ds }}",
            s3_bucket_name="{{ ds }}",
            file_size=4000,
            source_aws_conn_id="{{ ds }}",
            dest_aws_conn_id="{{ ds }}",
        )
        ti = TaskInstance(operator, run_id="something")
        ti.dag_run = DagRun(
            dag_id=dag.dag_id, run_id="something", execution_date=timezone.datetime(2020, 1, 1)
        )
        ti.render_templates()
        assert "2020-01-01" == getattr(operator, "source_aws_conn_id")
        assert "2020-01-01" == getattr(operator, "dest_aws_conn_id")
        assert "2020-01-01" == getattr(operator, "s3_bucket_name")
        assert "2020-01-01" == getattr(operator, "dynamodb_table_name")
        assert "2020-01-01" == getattr(operator, "s3_key_prefix")