### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

- Localstack fails with HTTP 500, error code "InternalError", message "not enough values to unpack (expected 2, got 1)" when `CopySource` is an invalid string for `copy_object` API.

### Expected Behavior

- For the same API `copy_object`, the cloud fails with HTTP 400, error code "InvalidArgument".
- Localstack should handle invalid `CopySource` i.e., it is a dictionary with one value or an invalid string not adhering to "{bucket}/{key}" format.

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    docker run localstack/localstack

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

    botoclient.copy_object(CopySource="Invalid_random_string", Bucket="test_bucket", Key=key) 


 test_bucket is a valid bucket.  

### Environment

```markdown
- OS: Ubuntu 22.04.2 LTS
- LocalStack: 2.1.0
- boto3: 1.28.6
```


### Anything else?

_No response_
lifecycle_conf_rules: LifecycleRules,
    object_key: ObjectKey,
    size: ObjectSize,
    object_tags: dict[str, str],
) -> LifecycleRule:
    for rule in lifecycle_conf_rules:
        if not (expiration := rule.get("Expiration")) or "ExpiredObjectDeleteMarker" in expiration:
            continue
        if not (rule_filter := rule.get("Filter")):
            return rule
        if and_rules := rule_filter.get("And"):
            if all(
                _match_lifecycle_filter(key, value, object_key, size, object_tags)
                for key, value in and_rules.items()
            ):
                return rule
        if any(
            _match_lifecycle_filter(key, value, object_key, size, object_tags)
            for key, value in rule_filter.items()
        ):
            
            
            return rule
def _match_lifecycle_filter(