Docs: Add Python 3.10 support to CONTRIBUTING.md

[jaweed3]

URL(s) with the issue:

https://github.com/tensorflow/tfx/blob/master/CONTRIBUTING.md

Description of issue (what needs changing):

Clear description:

The CONTRIBUTING.md file currently states that TFX only supports Python 3.7, 3.8, and 3.9.

TFX only supports Python 3 (3.7, 3.8, and 3.9) on Linux and MacOS.

However, I have been successfully using TFX with Python 3.10 on Linux. This suggests the documentation is outdated.

Proposed Change: Update the document to include Python 3.10 as a supported version, like this:
TFX only supports Python 3 (3.7, 3.8, 3.9, and 3.10) on Linux and MacOS.

Correct links

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Parameters defined

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Returns defined

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Raises listed and defined

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Request visuals, if applicable

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[sonali-kumari1]

Hi @jaweed3 -
Thank you for bringing this up for enhancing our documentation. Let me take this internally and update this thread with updates. Thank you.