### 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_
monkeypatch.setattr(config, "S3_SKIP_SIGNATURE_VALIDATION", False)
@pytest.fixture(scope="class")
def s3_client_for_region():
    def _s3_client(
        region_name: str = None,
    ):
        return _client("s3", region_name=region_name)
    return _s3_client
@pytest.fixture
def s3_create_bucket_with_client(s3_resource):
    buckets = []
    def factory(s3_client, **kwargs) -> str:
        if "Bucket" not in kwargs:
            kwargs["Bucket"] = f"test-bucket-{short_uid()}"
        response = s3_client.create_bucket(**kwargs)
        buckets.append(kwargs["Bucket"])
        return response
    yield factory
    
    for bucket in buckets:
        try:
            bucket = s3_resource.Bucket(bucket)
            bucket.s.all().delete()
            bucket._versions.all().delete()
            bucket.delete()
        except Exception as e:
            LOG.debug(f"error cleaning up bucket {bucket}: {e}")
@pytest.fixture
def s3_multipart_upload(s3_client):