### 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_
multipart_upload_parts.append({"ETag": response["ETag"], "PartNumber": part_number})
            
            if zipped:
                break
        return s3_client.complete_multipart_upload(
            Bucket=bucket,
            Key=key,
            MultipartUpload={"Parts": multipart_upload_parts},
            UploadId=upload_id,
        )
    return perform_multipart_upload
@pytest.fixture
def create_tmp_folder_lambda():
    cleanup_folders = []
    def prepare_folder(path_to_lambda, run_command=None):
        tmp_dir = tempfile.mkdtemp()
        shutil.copy(path_to_lambda, tmp_dir)
        if run_command:
            run(f"cd {tmp_dir}; {run_command}")
        cleanup_folders.append(tmp_dir)
        return tmp_dir
    yield prepare_folder
    for folder in cleanup_folders:
        try:
            shutil.rmtree(folder)
        except Exception:
            LOG.warning(f"could not delete folder {folder}")
def _filter_header(param: dict) -> dict:
    return {k: v for k, v in param.items() if k.startswith("x-amz") or k in ["content-type"]}
class TestS3: