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# 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


""" Determine whether `content` contains valid zip bytes representing a JAR archive
        that contains at least one *.class file and a META-INF/MANIFEST.MF file. """
    try:
        with tempfile.NamedTemporaryFile() as tf:
            tf.write(content)
            tf.flush()
            with zipfile.ZipFile(tf.name, 'r') as zf:
                class_files = [e for e in zf.infolist() if e.filename.endswith('.class')]
                manifest_file = [e for e in zf.infolist() if e.filename.upper() == 'META-INF/MANIFEST.MF']
                if not class_files or not manifest_file:
                    return False
    except Exception:
        return False
    return True
def is_root():
    out = run('whoami').strip()
    return out == 'root'
def cleanup_resources():
    cleanup_tmp_files()
    cleanup_threads_and_processes()
@synchronized(lock=SSL_CERT_LOCK)
def generate_ssl_cert(target_file=None, overwrite=False, random=False, return_content=False, serial_number=None):
    
    
    from OpenSSL import crypto
    def all_exist(*files):