<!-- Love localstack? Please consider supporting our collective:
👉  https://opencollective.com/localstack/donate -->

# Type of request: This is a ...

[ ] bug report
[X ] feature request

# Detailed description

I'm using localstack to create a dynamoDb table locally with a dynamodb stream and a flink application consuming data from the stream
The shardId created in localstack follows this format

shardId-000000000000-798cedd84a2953c5af70a131f8701f35

Flink expects this format
shardId-00000001592367572726-07776efd

The difference is just after the prefix shardId.
Normally the real shardId created by amazon use is composed by shardId prefix, 20-digit timestamp and 0-36 or more characters separated by '-'

The current shardId format is not valid for flink applications and it's not following the real pattern used by amazon

## Expected behavior

ShardId must follow the pattern
shardId prefix, 20-digit timestamp and 0-36 or more characters separated by '-'

## Actual behavior

The shardId follows the pattern
shardId prefix, 12 0s and 33 characters separated by '-'

# Steps to reproduce

Create a dynamodb table

## Command used to start LocalStack

I'm using docker and docker compose to run localstack


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

aws --endpoint-url=http://localhost:4566 dynamodb create-table \
    --table-name temp4 \
    --attribute-definitions AttributeName=partition_key,AttributeType=S AttributeName=sort_key,AttributeType=S \
    --key-schema AttributeName=partition_key,KeyType=HASH AttributeName=sort_key,KeyType=RANGE \
    --provisioned-throughput ReadCapacityUnits=100,WriteCapacityUnits=100 \
    --stream-specification StreamEnabled=true,StreamViewType=NEW_AND_OLD_IMAGES


queue_name = 'queue-%s' % short_uid()
        dlq_name = 'queue-%s' % short_uid()
        dlq_info = self.client.create_queue(QueueName=dlq_name)
        dlq_arn = aws_stack.sqs_queue_arn(dlq_name)
        attributes = {'RedrivePolicy': json.dumps({'deadLetterTargetArn': dlq_arn, 'maxReceiveCount': 100})}
        queue_url = self.client.create_queue(QueueName=queue_name, Attributes=attributes)['QueueUrl']
        
        self.client.delete_queue(QueueUrl=queue_url)
        self.client.delete_queue(QueueUrl=dlq_info['QueueUrl'])
    def test_dead_letter_queue_execution(self):
        lambda_client = aws_stack.connect_to_service('lambda')
        
        queue_name1 = 'test-%s' % short_uid()
        queue_name2 = 'test-%s' % short_uid()
        queue_url1 = self.client.create_queue(QueueName=queue_name1)['QueueUrl']
        queue_arn1 = aws_stack.sqs_queue_arn(queue_name1)
        policy = {'deadLetterTargetArn': queue_arn1, 'maxReceiveCount': 1}
        queue_url2 = self.client.create_queue(QueueName=queue_name2,
                                              Attributes={'RedrivePolicy': json.dumps(policy)})['QueueUrl']
        queue_arn2 = aws_stack.sqs_queue_arn(queue_name2)
        
        lambda_name = 'test-%s' % short_uid()
        testutil.create_lambda_function(func_name=lambda_name, libs=TEST_LAMBDA_LIBS,
            handler_file=TEST_LAMBDA_PYTHON, runtime=LAMBDA_RUNTIME_PYTHON36)