Support for FFmpeg8 was added in #947 for Linux and MacOS. We need to: * Update the [windows wheel](https://github.com/meta-pytorch/torchcodec/pull/947/files) to build FFmpeg8 * Resolve any [build errors](https://github.com/meta-pytorch/torchcodec/actions/runs/18380936641/job/52370421382?pr=947) and test errors