[REVIEW] Fix issue with column and scalar re-assignment

[galipremsagar]

Fixes: #10305 This PR fixes issues where the scalar that is being assigned was being type-casted to the column's type. Added test coverage for the same.

[codecov]

Codecov Report

Merging #10377 (b9c9091) into branch-22.04 (78b316c) will increase coverage by 0.06%.
The diff coverage is 0.00%.

@@               Coverage Diff                @@
##           branch-22.04   #10377      +/-   ##
================================================
+ Coverage         10.58%   10.64%   +0.06%     
================================================
  Files               125      126       +1     
  Lines             21058    20938     -120     
================================================
  Hits               2228     2228              
+ Misses            18830    18710     -120     

Impacted Files	Coverage Δ
python/cudf/cudf/core/dataframe.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/core/scalar.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/series.py	0.00% <0.00%> (ø)
python/cudf/cudf/utils/utils.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/indexed_frame.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/mixins/__init__.py	0.00% <0.00%> (ø)
python/cudf/cudf/core/mixins/mixin_factory.py	0.00% <0.00%> (ø)
... and 1 more

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[galipremsagar]

@gpucibot merge