### 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.
bucket_name_redirected = f"bucket-{short_uid()}"
        bucket_name = f"bucket-{short_uid()}"
        s3_create_bucket(Bucket=bucket_name_redirected, ACL="public-read")
        bucket_website_url = _website_bucket_url(bucket_name)
        bucket_website_host = urlparse(bucket_website_url).netloc
        aws_client.s3.put_bucket_website(
            Bucket=bucket_name_redirected,
            WebsiteConfiguration={
                "RedirectAllRequestsTo": {"HostName": bucket_website_host},
            },
        )
        s3_create_bucket(Bucket=bucket_name, ACL="public-read")
        aws_client.s3.put_bucket_website(
            Bucket=bucket_name,
            WebsiteConfiguration={
                "IndexDocument": {"Suffix": "index.html"},
            },
        )
        aws_client.s3.put_(
            Bucket=bucket_name,