### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

Here are the kinesis events from inserting/deleting a dynamodb item:

```
{"eventID":"cf1199b0","eventVersion":"1.1","dynamodb":{"ApproximateCreationDateTime":1.635284406858227E9,"SizeBytes":56,"Keys":{"hash":{"S":"hash-691"},"range":{"S":"range-153"}},"NewImage":{"hash":{"S":"hash-691"},"range":{"S":"range-153"}}},"awsRegion":"us-east-1","eventSource":"aws:dynamodb","eventName":"INSERT","tableName":"bug"}

{"eventID":"976b515b","eventVersion":"1.1","dynamodb":{"ApproximateCreationDateTime":1.6352844070969691E9,"SizeBytes":4,"Keys":{"hash":{"S":"hash-691"},"range":{"S":"range-153"}},"OldImage":null},"awsRegion":"us-east-1","eventSource":"aws:dynamodb","eventName":"REMOVE","tableName":"bug"}
```

Note that the remove event has `OldImage` = `null`

### Expected Behavior

I expected `OldImage` to be `{"hash":{"S":"hash-691"},"range":{"S":"range-153"}}`.

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

https://github.com/achaphiv/issue-localstack-dynamodb-stream-to-kinesis

```
# Create table/stream and hook them up
docker-compose up -d

# Create/delete an item
./mvnw -P write-to-dynamodb

# See the produced records
./mvnw -P watch-kinesis
```

### Environment

```markdown
- OS: Manjaro Linux
- LocalStack: 0.12.19
```


### Anything else?

_No response_
new_record["eventID"] = short_uid()
                new_record["eventName"] = "MODIFY"
                new_record["dynamodb"]["Keys"] = keys
                new_record["dynamodb"]["OldImage"] = self._thread_local("existing_items")[i]
                new_record["dynamodb"]["NewImage"] = updated_item
                new_record["eventSourceARN"] = aws_stack.dynamodb_table_arn(table_name)
                new_record["dynamodb"]["SizeBytes"] = len(json.dumps(updated_item))
                records.append(new_record)
                i += 1
            delete_request = request.get("Delete")
            if delete_request:
                table_name = delete_request["TableName"]
                keys = delete_request["Key"]
                existing_item = self._thread_local("existing_items")[i]
                if isinstance(keys, Response):
                    return keys
                stream_spec = dynamodb_get_table_stream_specification(table_name=table_name)
                if stream_spec:
                    record["dynamodb"]["StreamViewType"] = stream_spec["StreamViewType"]
                new_record = clone(record)
                new_record["eventID"] = short_uid()
                new_record["eventName"] = "REMOVE"
                new_record["dynamodb"]["Keys"] = keys
                new_record["dynamodb"]["OldImage"] = existing_item
                new_record["dynamodb"]["SizeBytes"] = len(json.dumps(existing_item))
                new_record["eventSourceARN"] = aws_stack.dynamodb_table_arn(table_name)
                records.append(new_record)
                i += 1
        return records
    def prepare_records_to_forward_to_ddb_stream(self, records):