### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

If the Lambda returns an error, the message is put into DLQ straightaway after first try **although** the configurations says "try 3 times".

### Expected Behavior

If the Lambda returns an error, the message should be put into DLQ after what `RedrivePolicy.maxReceiveCount` says which is 3 in this case. For instance, try processing the message 3 times, if still no success, put it into DLQ.

### How are you starting LocalStack?

With a docker-compose file

### Steps To Reproduce

```yaml
version: "3.8"

services:
  localstack:
    image: "localstack/localstack"
    container_name: "localstack"
    ports:
      - "4566-4599:4566-4599"
    environment:
      - DEBUG=1
      - DEFAULT_REGION=eu-west-1
      - SERVICES=lambda,events,sqs
      - DATA_DIR=/tmp/localstack/data
      - DOCKER_HOST=unix:///var/run/docker.sock
      - LAMBDA_EXECUTOR=docker
    volumes:
      - "./tmp/localstack:/tmp/localstack"
      - "/var/run/docker.sock:/var/run/docker.sock"
```

### Environment

```markdown
- OS: MacOS BigSur
- LocalStack: `1dc090777b0c`
```


### Anything else?

This will try **only once** and put the message into DLQ after failure **although** the retry policy instructs for **3 retries**. This is the issue.

```bash
aws --profile localstack --endpoint-url http://localhost:4566 lambda create-function \
    --function-name api-lambda \
    --handler lambda/main \
    --runtime go1.x \
    --role api-role \
    --zip-file fileb://lambda.zip
    
aws --profile localstack --endpoint-url http://localhost:4566 sqs create-queue \
    --queue-name api-dead-letter-queue

aws --profile localstack --endpoint-url http://localhost:4566 sqs create-queue \
    --queue-name api-queue \
    --attributes '{"RedrivePolicy":"{\"deadLetterTargetArn\":\"arn:aws:sqs:eu-west-1:000000000000:api-dead-letter-queue\",\"maxReceiveCount\":\"3\"}"}'

aws --profile localstack --endpoint-url http://localhost:4566 lambda create-event-source-mapping \
    --function-name api-lambda \
    --event-source-arn arn:aws:sqs:eu-west-1:000000000000:api-queue
```

Use this command to test.

```bash
aws --profile localstack --endpoint-url http://localhost:4566 sqs send-message \
    --queue-url http://localhost:4566/000000000000/api-queue \
    --message-body '{"hello":"world"}'
```

----

FYI - This will try **indefinitely** (_30 sec in between_) until it succeeds because there is **no** retry policy set which is perfectly normal and expected behaviour.

```bash
aws --profile localstack --endpoint-url http://localhost:4566 lambda create-function \
    --function-name api-lambda \
    --handler lambda/main \
    --runtime go1.x \
    --role api-role \
    --zip-file fileb://lambda.zip
    
aws --profile localstack --endpoint-url http://localhost:4566 sqs create-queue \
    --queue-name api-dead-letter-queue

aws --profile localstack --endpoint-url http://localhost:4566 sqs create-queue \
    --queue-name api-queue

aws --profile localstack --endpoint-url http://localhost:4566 lambda create-event-source-mapping \
    --function-name api-lambda \
    --event-source-arn arn:aws:sqs:eu-west-1:000000000000:api-queue
```
@pytest.mark.only_localstack
    def test_list_queues_multi_region_without_endpoint_strategy(
        self, create_boto_client, cleanups, monkeypatch
    ):
        monkeypatch.setattr(config, "SQS_ENDPOINT_STRATEGY", "off")
        region1 = "us-east-1"
        region2 = "eu-central-1"
        region1_client = create_boto_client("sqs", region_name=region1)
        region2_client = create_boto_client("sqs", region_name=region2)
        queue1_name = f"queue-region1-{short_uid()}"
        queue2_name = f"queue-region2-{short_uid()}"
        queue1_url = region1_client.create_queue(QueueName=queue1_name)["QueueUrl"]
        cleanups.append(lambda: region1_client.delete_queue(QueueUrl=queue1_url))
        queue2_url = region2_client.create_queue(QueueName=queue2_name)["QueueUrl"]
        cleanups.append(lambda: region2_client.delete_queue(QueueUrl=queue2_url))
        # re
        assert region1 not in queue1_url
        assert region1 not in queue2_url
        assert queue1_url in region1_client.list_queues().get("QueueUrls", [])
        assert queue2_url not in region1_client.list_queues().get("QueueUrls", [])
        assert queue1_url not in region2_client.list_queues().get("QueueUrls", [])
        assert queue2_url in region2_client.list_queues().get("QueueUrls", [])
    @pytest.mark.aws_validated
    def test_list_queues_multi_region_with_endpoint_strategy_domain(
        self, create_boto_client, cleanups, monkeypatch
    ):
        monkeypatch.setattr(config, "SQS_ENDPOINT_STRATEGY", "domain")
        region1 = "us-east-1"
        region2 = "eu-central-1"
        region1_client = create_boto_client("sqs", region_name=region1)