Update Java tests to expect DECIMAL128 from Arrow

[jlowe]

After #9986 reading Arrow in libcudf now returns DECIMAL128 instead of DECIMAL64. This updates the Java tests to expect DECIMAL128 instead of DECIMAL64 by upcasting the decimal columns in the original table being round-tripped through Arrow before comparing the result.

[mythrocks]

The fix makes sense, given the current libcudf behaviour. LGTM!

[jlowe]

@gpucibot merge

[galipremsagar]

rerun tests

[galipremsagar]

rerun tests

[codecov]

Codecov Report

Merging #10073 (bfb950a) into branch-22.02 (967a333) will decrease coverage by 0.07%.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           branch-22.02   #10073      +/-   ##
================================================
- 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

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 04b79ac...bfb950a. Read the comment docs.

[robertmaynard]

rerun tests