[release-23.0] Fix forward compatibility in upgrade/downgrade tests

[arthurschreiber]

Description

In v24, some queries to sharded keyspaces using window functions can now be planned correctly. These tests need to be updated to ensure they handle the new behavior correctly.

Related Issue(s)

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[mattlord]

@arthurschreiber I pushed the fix to my PR here as it was blocked on it: #18989

So we can close this PR. Thank you for looking at it though! ❤️

[arthurschreiber]

@mattlord Thanks of the heads up!