Fix data corruption when reading ORC files with empty stripes

[vuule]

Description

Closes #12155
Closes #12156

Two fixes:

• Fixes the reader logic that used to mark entire (nesting) level of columns as having no data when one or more stripes have no data.
• Removes the assert that failed when a non-struct column has no data in a stripe. There are several corner cases where this is valid input, some of which are not cheap to check.

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[codecov]

Codecov Report

Base: 88.25% // Head: 88.25% // No change to project coverage 👍

Coverage data is based on head (f15080f) compared to base (08c0c5a).
Patch has no changes to coverable lines.

Additional details and impacted files

@@              Coverage Diff              @@
##           branch-22.12   #12160   +/-   ##
=============================================
  Coverage         88.25%   88.25%           
=============================================
  Files               137      137           
  Lines             22571    22571           
=============================================
  Hits              19921    19921           
  Misses             2650     2650           

Impacted Files	Coverage Δ
python/dask_cudf/dask_cudf/backends.py	85.17% <ø> (ø)

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[revans2]

This fixes the one file I uploaded, but it does not work when there are other stripes in the file that do have data. I'll see if I can come up with a synthetic file that shows this same issue.

[revans2]

combined_error.zip holds an ORC file that has more rows in it and still is showing the problem that we had, and fits more with what our customer is actually seeing.