### 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_
redirected_bucket_website = _website_bucket_url(bucket_name_redirected)
        response_no_redirect = .get(redirected_bucket_website, allow_redirects=False)
        assert response_no_redirect.status_code == 301
        assert response_no_redirect.content == b""
        response_redirected = .get(redirected_bucket_website)
        assert response_redirected.status_code == 200
        assert response_redirected.content == b"index"
        response = .get(bucket_website_url)
        assert response.status_code == 200
        assert response.content == b"index"
        assert response.content == response_redirected.content
        response_redirected = .get(f"{redirected_bucket_website}/random-key")
        assert response_redirected.status_code == 404
    @staticmethod
    def _get_static_hosting_transformers(snapshot):
        return [
            snapshot.transform.regex(
                "RequestId: (.*?)</li>", replacement="RequestId: <request-id></li>"
            ),
            snapshot.transform.regex("HostId: (.*?)</li>", replacement="HostId: <host-id></li>"),
            snapshot.transform.regex(
                "BucketName: (.*?)</li>", replacement="BucketName: <bucket-name></li>"
            ),
        ]
def _anon_client(service: str):
    conf = Config(signature_version=UNSIGNED)
    if os.environ.get("TEST_TARGET") == "AWS_CLOUD":
        return boto3.client(service, config=conf, region_name=None)
    return aws_stack.create_external_boto_client(service, config=conf)
def _s3_client_custom_config(conf: Config, endpoint_url: str = None):