checksum updated

/!\ PLEASE INCLUDE THE FULL STACKTRACE AND CODE SNIPPET

Short description
Description of the bug.
tensorflow_datasets.core.download.download_manager.NonMatchingChecksumError: Artifact https://drive.google.com/uc?export=download&id=0B7EVK8r0v71pZjFTYXZWM3FlRnM, downloaded to C:\Users\Omar\tensorflow_datasets\downloads\ucexport_download_id_0B7EVK8r0v71pZjFTYXZWM3FlDDaXUAQO8EGH_a7VqGNLRtW52mva1LzDrb-V723OQN8.tmp.347438ae46e044e2ba3c37003ea58516\download, has wrong checksum:

• Expected: UrlInfo(size=1.34 GiB, checksum='46fb89443c578308acf364d7d379fe1b9efb793042c0af734b6112e4fd3a8c74', filename='img_align_celeba.zip')
• Got: UrlInfo(size=2.37 KiB, checksum='1af1d7f8e0e48dca7523b10852c4aa61fd0c30275f8963ccf191411a10de8324', filename='download')
  To debug, see: https://www.tensorflow.org/datasets/overview#fixing_nonmatchingchecksumerror

Environment information

• Operating System:

• Python version:

• tensorflow-datasets/tfds-nightly version:

• tensorflow/tf-nightly version:

• Does the issue still exists with the last tfds-nightly package (pip install --upgrade tfds-nightly) ?

Reproduction instructions

<put a code snippet, a link to a gist or a colab here>

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Link to logs
If applicable, <link to gist with logs, stack trace>

Expected behavior
What you expected to happen.

Additional context
Add any other context about the problem here.

Start with the tensorflow_datasets.core.download.download_manager entry point and the linked documentation on fixing NonMatchingChecksumError. Reproduce the download using the complete stack trace, environment, and code snippet requested in the issue; done requires identifying the affected dataset and confirming the expected and actual artifact checksums are correctly handled.