### 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_
test_port, invocations, proxy = start_http_server()
    yield test_port, invocations, proxy
    proxy.stop()
role_policy_su = {
    "Version": "2012-10-17",
    "Statement": [{"Effect": "Allow", "Action": ["*"], "Resource": ["*"]}],
}
@pytest.fixture(scope="session")
def lambda_su_role():
    iam_client: IAMClient = _client("iam")
    role_name = f"lambda-autogenerated-{short_uid()}"
    role = iam_client.create_role(RoleName=role_name, AssumeRolePolicyDocument=role_assume_policy)[
        "Role"
    ]
    policy_name = f"lambda-autogenerated-{short_uid()}"
    policy_arn = iam_client.create_policy(
        PolicyName=policy_name, PolicyDocument=json.dumps(role_policy_su)
    )["Policy"]["Arn"]
    iam_client.attach_role_policy(RoleName=role_name, PolicyArn=policy_arn)
    if os.environ.get("TEST_TARGET", "") == "AWS_CLOUD":  
        time.sleep(10)
    yield role["Arn"]
    run_safe(iam_client.detach_role_policy(RoleName=role_name, PolicyArn=policy_arn))
    run_safe(iam_client.delete_role(RoleName=role_name))
    run_safe(iam_client.delete_policy(PolicyArn=policy_arn))
@pytest.fixture
def create_iam_role_with_policy(iam_client):