[REVIEW] Fix columns ordering issue in parquet reader

[galipremsagar]

Fixes: #10062

This PR fixes issue where the order of columns and parquet metadata columns(i.e., meta['columns']) can differ and both are not guaranteed to be in the same order always. In this PR, removed the code that has this assumption and created a new dict that contains the metadata of columns which are later used to update the column metadata in dataframe.

[rgsl888prabhu]

A small suggestion, rest looks good

[vuule]

rerun tests

[galipremsagar]

rerun tests

[codecov]

Codecov Report

Merging #10066 (fc48e89) into branch-22.02 (967a333) will decrease coverage by 0.07%.
The diff coverage is n/a.

❗ Current head fc48e89 differs from pull request most recent head 8183a1c. Consider uploading reports for the commit 8183a1c to get more accurate results

@@               Coverage Diff                @@
##           branch-22.02   #10066      +/-   ##
================================================
- Coverage         10.49%   10.41%   -0.08%     
================================================
  Files               119      119              
  Lines             20305    20541     +236     
================================================
+ Hits               2130     2139       +9     
- Misses            18175    18402     +227     

Impacted Files	Coverage Δ
python/custreamz/custreamz/kafka.py	29.16% <0.00%> (-0.63%)	⬇️
python/dask_cudf/dask_cudf/sorting.py	92.66% <0.00%> (-0.25%)	⬇️
python/dask_cudf/dask_cudf/core.py	70.85% <0.00%> (-0.17%)	⬇️
python/cudf/cudf/__init__.py	0.00% <0.00%> (ø)
python/cudf/cudf/api/types.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/frame.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/index.py	0.00% <0.00%> (ø)
python/cudf/cudf/io/parquet.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/dtypes.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/scalar.py	0.00% <0.00%> (ø)
... and 31 more

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[galipremsagar]

rerun tests

[vuule]

rerun tests

[vuule]

dask_cudf.tests.test_groupby.test_groupby_basic[True-var] failed about five times in a row. I know it can pass since it passed once on my PR, and on #10067. Might be better to admin merge these instead to retrying so many times.

[galipremsagar]

dask_cudf.tests.test_groupby.test_groupby_basic[True-var] failed about five times in a row. I know it can pass since it passed once on my PR, and on #10067. Might be better to admin merge these instead to retrying so many times.

This was a cupy flaky issue, #10071 has a fix for it. I'll get it merged ASAP.

[galipremsagar]

@gpucibot merge