### 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_
change_set_id: str
    stack_id: str
    stack_name: str
    change_set_name: str
    outputs: Dict[str, str]
    destroy: Callable[[], None]
@pytest.fixture
def deploy_cfn_template(
    cfn_client,
    lambda_client,
    cleanup_stacks,
    cleanup_changesets,
    is_change_set_created_and_available,
    is_change_set_finished,
):
    state = []
    def _deploy(
        *,
        is_update: Optional[bool] = False,
        stack_name: Optional[str] = None,
        change_set_name: Optional[str] = None,
        template: Optional[str] = None,
        template_path: Optional[str | os.PathLike] = None,
        template_mapping: Optional[Dict[str, any]] = None,
        parameters: Optional[Dict[str, str]] = None,
        max_wait: Optional[int] = None,
    ) -> DeployResult: