[Feature]: Add `throwIfError` method for map and parallel result

[wangyb-A]

What would you like?

I'd like to have a throwIfError method for Map and Parallel like other SDK:

js: https://github.com/aws/aws-durable-execution-sdk-js/blob/main/packages/aws-durable-execution-sdk-js/src/handlers/concurrent-execution-handler/batch-result.ts#L169
py: https://github.com/aws/aws-durable-execution-sdk-python/blob/main/packages/aws-durable-execution-sdk-python/src/aws_durable_execution_sdk_python/concurrency/models.py#L382

Possible Implementation

No response

Is this a breaking change?

No

Does this require an RFC?

No

Additional Context

No response