[ONPREM-2361] Update server Kubernetes support to include 1.33

[christian-stephen]

Server 4.7+ has been tested and confirmed to work with Kubernetes version 1.33. This updates our docs to reflect that support, especially with 1.31 entering EoL.

Description

What did you change?

Reasons

Why did you make these changes?

https://circleci.atlassian.net/browse/ONPREM-2361

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[christian-stephen]

~ Should we update the lower bound here since 1.26 is now long out of support?

[ryanwohara]

Feel free to change the minimum - LGTM either way