### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When re-subscribing an SQS queue to an SNS topic with the attribute "RawMessageDelivery=true", localstack throws an error.
It's occuring both on my AWS Java Client and with CLI awslocal
it's working well without this attribute


### Expected Behavior

Since the queue is subscribed with the attribute "RawMessageDelivery=true" to the topic already, it should be a no-op and simply return the same subscription arn.



### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    docker run localstack/localstack

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

```
awslocal sns create-topic --name localstack-topic
awslocal sqs create-queue --queue-name localstack-queue

awslocal sns subscribe   --topic-arn arn:aws:sns:eu-central-1:000000000000:localstack-topic    --protocol sqs    --notification-endpoint arn:aws:sqs:eu-central-1:000000000000:localstack-queue    --return-subscription-arn  --attributes RawMessageDelivery=True

awslocal sns subscribe   --topic-arn arn:aws:sns:eu-central-1:000000000000:localstack-topic    --protocol sqs    --notification-endpoint arn:aws:sqs:eu-central-1:000000000000:localstack-queue    --return-subscription-arn  --attributes RawMessageDelivery=True
```

### Environment

```markdown
aws-cli/1.22.34 Python/3.10.12 Linux/6.2.0-32-generic botocore/1.31.47
```


### Anything else?

subscription created with "RawMessageDelivery=true"

![image](https://github.com/localstack/localstack/assets/98832464/faac719d-b5fe-4920-a756-28abc17fd0e7)


but if the subscription is created without attributes it's working well 

![image](https://github.com/localstack/localstack/assets/98832464/44ed7afd-a3b2-4a19-aff4-cba7b75ad52c)


maybe it's related to https://github.com/localstack/localstack/issues/9058
)
        elif protocol == "sms" and not is_e164(endpoint):
            raise InvalidParameterException(f"Invalid SMS endpoint: {endpoint}")
        elif protocol == "sqs":
            try:
                parse_arn(endpoint)
            except InvalidArnException:
                raise InvalidParameterException("Invalid parameter: SQS endpoint ARN")
        if ".fifo" in endpoint and ".fifo" not in topic_arn:
            raise InvalidParameterException(
                "Invalid parameter: Invalid parameter: Endpoint Reason: FIFO SQS Queues can not be subscribed to standard SNS topics"
            )
        if attributes:
            for attr_name, attr_value in attributes.items():
                validate_subscription_attribute(
                    attribute_name=attr_name,
                    attribute_value=attr_value,
                    topic_arn=topic_arn,
                    endpoint=endpoint,
                )
        moto_response = call_moto(context)
        subscription_arn = moto_response.get("SubscriptionArn")
        parsed_topic_arn = parse_and_validate_topic_arn(topic_arn)
        store = self.get_store(account_id=parsed_topic_arn["account"], region_name=context.region)
        
        
        for existing_topic_subscription in store.topic_subscriptions.get(topic_arn, []):
            sub = store.subscriptions.get(existing_topic_subscription, {})
            if sub.get("Endpoint") == endpoint:
                for attr in sns_constants.VALID_SUBSCRIPTION_ATTR_NAME: