### 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.
@pytest.mark.aws_validated
    @pytest.mark.xfail(
        reason="Behaviour diverges from AWS, Access-Control-* headers always added",
    )
    def test_s3_get_response_headers_without_origin(self, s3_bucket, aws_client):
        # put 
        _key = "key-by-hostname"
        aws_client.s3.put_(Bucket=s3_bucket, Key=_key, Body="something")
        aws_client.s3.put_bucket_cors(
            Bucket=s3_bucket,
            CORSConfiguration={
                "CORSRules": [
                    {
                        "AllowedMethods": ["GET", "PUT", "POST"],
                        "AllowedOrigins": ["*"],
                        "ExposeHeaders": ["ETag", "x-amz-version-id"],
                    }
                ]
            },
        )
        # get 
        url = aws_client.s3.generate_presigned_url(
            "get_", Params={"Bucket": s3_bucket, "Key": _key}
        )
        response = .get(url, verify=False)
        assert "Access-Control-Expose-Headers" not in response.headers
        assert "Access-Control-Allow-Methods" not in response.headers
        assert "Access-Control-Allow-Origin" not in response.headers
    @staticmethod
    def _get_cors_result_header_snapshot_transformer(snapshot):