<!-- 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


{'Id': '{:02d}'.format(i), 'ReceiptHandle': m['ReceiptHandle']}
                for i, m in enumerate(messages)
            ]
        )
        response = receive_messages()
        self.assertFalse(response.get('Messages'))
        
        self.client.send_message_batch(QueueUrl=queue_url, Entries=messages_to_send)
        messages = receive_messages()['Messages']
        response = receive_messages()
        self.assertFalse(response.get('Messages'))
        reset_hashes = get_hashes(messages[:5])
        self.client.change_message_visibility_batch(
            QueueUrl=queue_url,
            Entries=[
                {
                    'Id': '{:02d}'.format(i),
                    'ReceiptHandle': msg['ReceiptHandle'],
                    'VisibilityTimeout': 0,
                }
                for i, msg in enumerate(messages[:5])
            ]
        )
        for i in range(2):
            messages = receive_messages(VisibilityTimeout=0)['Messages']
            received_hashes = get_hashes(messages)
            self.assertEqual(reset_hashes, received_hashes)
        
        self.client.delete_queue(QueueUrl=queue_url)
    def test_create_fifo_queue(self):