### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

Localstack always bypasses SNS message attributes to SQS message attributes, while AWS does it only when `raw_message_delivery` is enabled. See https://stackoverflow.com/questions/44238656/how-to-add-sqs-message-attributes-in-sns-subscription

### Expected Behavior

SNS message attributes bypassed to SQS message attribute only when `raw_message_delivery` is `true`.

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

Try to send SNS message with attributes in Localstack and in AWS.
AWS will not map SNS message attributes to SQS message attributes without `raw_message_delivery = true` parameter for a topic subscription.

### Environment

```markdown
- OS: docker
- LocalStack: latest
```


### Anything else?

_No response_
attributes = {}
    for key in req_data.keys():
        if ".key" in key:
            attributes[req_data[key][0]] = req_data[key.replace("key", "value")][0]
    defaults = {
        
        
        "PendingConfirmation": "false"
    }
    for key, value in defaults.items():
        attributes[key] = attributes.get(key, value)
    return attributes
def is_number(x):