### 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.
"Connection": "Keep-Alive",
            "Expect": "100-continue",
        }
        s3_create_bucket(Bucket=bucket_name)
        presigned_client = _s3_client_custom_config(
            Config(signature_version=signature_version),
            endpoint_url=_endpoint_url(),
        )
        url = presigned_client.generate_presigned_url(
            "put_",
            Params={
                "Bucket": bucket_name,
                "Key": _key,
                "ContentType": "application/octet-stream",
                "ContentMD5": content_md5,
            },
        )
        result = .put(url, data="test", headers=headers)
        assert result.status_code == 403
        if snapshotted:
            exception = xmltodict.parse(result.content)
            snapshot.match("with-decoded-content-length", exception)
        # old 
        if LEGACY_S3_PROVIDER or signature_version == "s3":
            assert b"SignatureDoesNotMatch" in result.content
        # we a
        else:
            assert b"AccessDenied" in result.content
        # chec
        headers.pop("X-Amz-Decoded-Content-Length")