### 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_
template_names = []
    def factory(name: str, contents: str, subject: str = f"Email template {short_uid()}"):
        ses_client.create_template(
            Template={
                "TemplateName": name,
                "SubjectPart": subject,
                "TextPart": contents,
            }
        )
        template_names.append(name)
    yield factory
    for template_name in template_names:
        ses_client.delete_template(TemplateName=template_name)
@pytest.fixture
def ses_verify_identity(ses_client):
    identities = []
    def factory(email_address: str) -> None:
        ses_client.verify_email_identity(EmailAddress=email_address)
    yield factory
    for identity in identities:
        ses_client.delete_identity(Identity=identity)
@pytest.fixture
def cleanups(ec2_client):