### 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.
self,
        context: RequestContext,
        request: GetObjectAttributesRequest,
    ) -> GetObjectAttributesOutput:
        bucket_name = request["Bucket"]
        moto_backend = get_moto_s3_backend(context)
        bucket = get_bucket_from_moto(moto_backend, bucket_name)
        
        key = get_key_from_moto_bucket(
            moto_bucket=bucket,
            key=request["Key"],
            version_id=request.get("VersionId"),
            raise_if_delete_marker_method="GET",
        )
        object_attrs = request.get("ObjectAttributes", [])
        response = GetObjectAttributesOutput()
        
        if "ETag" in object_attrs:
            response["ETag"] = key.etag.strip('"')
        if "StorageClass" in object_attrs:
            response["StorageClass"] = key.storage_class
        if "ObjectSize" in object_attrs:
            response["ObjectSize"] = key.size
        if "Checksum" in object_attrs and (checksum_algorithm := key.checksum_algorithm):
            
            
            checksum = get_object_checksum_for_algorithm(
                checksum_algorithm=checksum_algorithm,