### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

copyObject and putObject (and perhaps other requests) requests are accepted and do not return an error when an SSE KMS key is specified. 

### Expected Behavior

The error which should be returned is KMS.NotFoundException.

### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

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

    Localstack testcontainers 

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

   Call copyObject/putObject via latest version using AWS SDK V2 and specific a ssekmsKeyId.

```java
final var copyObjectRequestBuilder =
        CopyObjectRequest.builder()
            .serverSideEncryption(ServerSideEncryption.AWS_KMS)
            .ssekmsKeyId("NON-EXISTENT KMS KEY")
            .sourceBucket(sourceBucketName)
            .sourceKey(sourceKey)
            .destinationBucket(destinationBucket)
            .destinationKey(destinationKey);
final var copyObjectResponse = sourceRegionS3Client.copyObject(copyObjectRequest); // Error should be thrown here but localstack does not return an error
```

### Environment

```markdown
- OS: MacOS 13.0
- LocalStack: Latest (v1.2.0)
```


### Anything else?

_No response_
"minDelayTarget": 1,
                "maxDelayTarget": 1,
                "numRetries": 0,
                "numNoDelayRetries": 0,
                "numMinDelayRetries": 0,
                "numMaxDelayRetries": 0,
                "backoffFunction": "linear",
            },
            "sicklyRetryPolicy": None,
            "throttlePolicy": {"maxReceivesPerSecond": 1000},
            "guaranteed": False,
        }
        sns_client.set_subscription_attributes(
            SubscriptionArn=subscription_arn,
            AttributeName="DeliveryPolicy",
            AttributeValue=json.dumps(delivery_policy),
        )
        if raw_message_delivery:
            sns_client.set_subscription_attributes(
                SubscriptionArn=subscription_arn,
                AttributeName="RawMessageDelivery",
                AttributeValue="true",
            )
        return topic_arn, subscription_arn, endpoint_url, server
    yield _create_http_endpoint
    for http_server in http_servers:
        if http_server.is_running():
            http_server.stop()
@pytest.fixture
def route53_hosted_zone(route53_client):