cerbero: Add Windows 11 to the supported versions list
Older Python reports Windows 11 as '10', but newer Python (at least 3.12) reports it as '11'.
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The migration is almost done, at least the rest should happen in the background. There are still a few technical difference between the old cluster and the new ones, and they are summarized in this issue. Please pay attention to the TL:DR at the end of the comment.
Older Python reports Windows 11 as '10', but newer Python (at least 3.12) reports it as '11'.