### 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.
aws_client.s3.put_bucket_cors(Bucket=bucket, CORSConfiguration=BUCKET_CORS_CONFIG)
        aws_client.s3.put_(
            Bucket=bucket, Key=_key, Body="<h1>Index</html>", ACL="public-read"
        )
        response = .get(
            url, headers={"Origin": config.get_edge_url(), "Content-Type": "text/html"}
        )
        assert 200 == response.status_code
        snapshot.match("raw-response-headers", dict(response.headers))
        BUCKET_CORS_CONFIG = {
            "CORSRules": [
                {
                    "AllowedOrigins": ["https://anydomain.com"],
                    "AllowedMethods": ["GET", "PUT"],
                    "MaxAgeSeconds": 3000,
                    "AllowedHeaders": ["x-amz-tagging"],
                }
            ]
        }
        aws_client.s3.put_bucket_cors(Bucket=bucket, CORSConfiguration=BUCKET_CORS_CONFIG)
        response = .get(
            url, headers={"Origin": config.get_edge_url(), "Content-Type": "text/html"}
        )
        assert 200 == response.status_code
        snapshot.match("raw-response-headers-2", dict(response.headers))
    @pytest.mark.aws_validated
    @pytest.mark.xfail(
        reason="Access-Control-Allow-Origin returns Origin value in LS",
    )
    def test_s3_get_response_headers(self, s3_bucket, snapshot, aws_client):