### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

The Complete Multipart Upload operation generates the **InternalError** error for non-existing uploads.

### Expected Behavior

The Complete Multipart Upload operation generates the **NoSuchUpload** error for non-existing uploads.

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

    docker run -it --rm -p 4566:4566 localstack/localstack

    aws s3api create-bucket --bucket test --endpoint-url http://localhost:4566 --create-bucket-configuration LocationConstraint=us-west-2

    aws s3api complete-multipart-upload --bucket test --endpoint-url http://localhost:4566 --key test --upload-id test

### Environment

```markdown
- OS: Windows 11
- LocalStack: latest
```


### Anything else?

The Abort Multipart Upload operation works correctly in LocalStack.

The official documentation: https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html
Amazon S3 throws the correct **NoSuchUpload** error for both Abort and Complete operations.
if not context:
            return s3_stores[get_aws_account_id()][aws_stack.get_region()]
        return s3_stores[context.account_id][context.region]
    def _clear_bucket_from_store(self, bucket: BucketName):
        store = self.get_store()
        store.bucket_lifecycle_configuration.pop(bucket, None)
        store.bucket_versioning_status.pop(bucket, None)
        store.bucket_cors.pop(bucket, None)
        store.bucket_notification_configs.pop(bucket, None)
        store.bucket_replication.pop(bucket, None)
        store.bucket_website_configuration.pop(bucket, None)
    def on_after_init(self):
        apply_moto_patches()
        preprocess_request.append(self._cors_handler)
        register_website_hosting_routes(router=ROUTER)
        register_custom_handlers()
        
        
    def __init__(self) -> None:
        super().__init__()
        self._notification_dispatcher = NotificationDispatcher()
        self._cors_handler = S3CorsHandler()
    def on_before_stop(self):