support up-to-date python on community images for enterprise gateway

[HCharlie]

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Hi, I see the image listed here is still Python 3.7, which reached the end of its life already. https://devguide.python.org/versions/

could we support images using Python 3.8, 3.9, 3.10, 3.11 or 3.12 even?

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