Use structured bindings instead of std::tie

[karthikeyann]

Addresses part of #10350 Take advantage of C++17 feature structured bindings

There are few usages where std::tie is used on existing variables and for ordered operator== comparisons. These usages are not replaced.

[karthikeyann]

rerun tests

[codecov]

Codecov Report

Merging #10726 (ab372df) into branch-22.06 (d6e3068) will increase coverage by 0.03%.
The diff coverage is 100.00%.

❗ Current head ab372df differs from pull request most recent head ab6a81d. Consider uploading reports for the commit ab6a81d to get more accurate results

@@               Coverage Diff                @@
##           branch-22.06   #10726      +/-   ##
================================================
+ Coverage         86.36%   86.39%   +0.03%     
================================================
  Files               142      142              
  Lines             22302    22304       +2     
================================================
+ Hits              19261    19270       +9     
+ Misses             3041     3034       -7     

Impacted Files	Coverage Δ
python/cudf/cudf/core/frame.py	93.41% <ø> (ø)
python/cudf/cudf/core/series.py	95.16% <100.00%> (+<0.01%)	⬆️
python/cudf/cudf/core/column/string.py	89.21% <0.00%> (+0.12%)	⬆️
python/cudf/cudf/core/groupby/groupby.py	91.68% <0.00%> (+0.23%)	⬆️
python/cudf/cudf/core/column/numerical.py	96.17% <0.00%> (+0.29%)	⬆️
python/cudf/cudf/core/tools/datetimes.py	84.49% <0.00%> (+0.30%)	⬆️
python/cudf/cudf/core/column/lists.py	92.91% <0.00%> (+1.25%)	⬆️

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[codereport]

❤️ ❤️ ❤️

[codereport]

@gpucibot merge