Using resources from dependencies with `yield` in background tasks is no longer supported.

This change is what supports the new features, read below. 🤓

### Dependencies with `yield`, `HTTPException` and Background Tasks

Dependencies with `yield` now can raise `HTTPException` and other exceptions after `yield`. 🎉

        using the `tf.load_op_library()` mechanism.
    *   `Dataset.list_files()` now shuffles its output by default.
    *   `Dataset.shuffle(..., seed=tf.constant(0, dtype=tf.int64))` now yields
        the same sequence of elements as `Dataset.shuffle(..., seed=0)`.
    *   Add `num_parallel_reads` argument to `tf.data.TFRecordDataset`.
*   `tf.contrib`:

- New scoring for PodTopologySpreading that yields better spreading ([#90475](https://github.com/kubernetes/kubernetes/pull/90475), [@alculquicondor](https://github.com/alculquicondor)) [SIG Scheduling]

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