add unit tests for lead/lag on list for row window (#8259)

This PR just added the unit tests for the lead/lag on List/Struct type for both Row-window and Range-window, Since libcudf has already supported the functionality. See the plugin feature request  NVIDIA/spark-rapids#2012

But there is an issue when setting the default values for lead/lag on List/Struct. I just commented the corresponding assertation out. I will re-enable it after libcudf fixes it.

Authors:
  - Bobby Wang (https://github.com/wbo4958)

Approvers:
  - MithunR (https://github.com/mythrocks)

URL: #8259