Fix error with multiple nested partition columns on Iceberg

[jinyangli34]

Description

Assign channel number based on the order of field ID.

Fixes #24628

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## Section
* Fix some things. ({issue}`24628`)

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[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: jinyang_li.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
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[wendigo]

I've applied some fixes, ptal @ebyhr @raunaqmorarka @chenjian2664