### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

Sending a message with body:
`"&quot;&quot;"`
is received on the consumer side with body:
`""""`

### Expected Behavior

Sending a message with body:
"&quot;&quot;"
is received on the consumer side with body:
"&quot;&quot;"

### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

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

Running localstack in docker desktop on Mac using helm chart

https://localstack.github.io/helm-charts
version 0.3.7
Image version: 0.14.3

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



### Environment

```markdown
- OS: macOS Monterey
- LocalStack: 0.14.3
```


### Anything else?

_No response_
payload = f"Action=ReceiveMessage&QueueUrl={queue_url}&VisibilityTimeout=0"
        result = requests.post(edge_url, data=payload, headers=headers)
        assert result.status_code == 200
        assert message_body in result.text
        
        queue_url = f"http://127.0.0.1/{get_aws_account_id()}/{queue_name}"
        payload = f"Action=SendMessage&QueueUrl={queue_url}&MessageBody={message_body}"
        result = requests.post(edge_url, data=payload, headers=headers)
        assert result.status_code == 200
        assert "MD5" in result.text
        queue_url = f"http://127.0.0.1/{get_aws_account_id()}/{queue_name}"
        payload = f"Action=ReceiveMessage&QueueUrl={queue_url}&VisibilityTimeout=0"
        result = requests.post(edge_url, data=payload, headers=headers)
        assert result.status_code == 200
        assert message_body in result.text
    @pytest.mark.aws_validated
    def test_fifo_messages_in_order_after_timeout(self, sqs_create_queue, aws_client):
        
        queue_name = f"queue-{short_uid()}.fifo"
        timeout = 1
        attributes = {"FifoQueue": "true", "VisibilityTimeout": f"{timeout}"}
        queue_url = sqs_create_queue(QueueName=queue_name, Attributes=attributes)
        for i in range(3):
            aws_client.sqs.send_message(
                QueueUrl=queue_url,
                MessageBody=f"message-{i}",
                MessageGroupId="1",
                MessageDeduplicationId=f"{i}",
            )
        def receive_and_check_order():