fixed comparisson and validity kernels

[ritchie46]

When the values masked out by the validity bits were different the comparison_and_validty kernels were incorrect. This PR fixes that.

[codecov]

Codecov Report

Merging #1243 (4c78804) into main (a7428e0) will increase coverage by 0.01%.
The diff coverage is 91.20%.

@@            Coverage Diff             @@
##             main    #1243      +/-   ##
==========================================
+ Coverage   83.32%   83.33%   +0.01%     
==========================================
  Files         359      359              
  Lines       37854    37939      +85     
==========================================
+ Hits        31541    31618      +77     
- Misses       6313     6321       +8     

Impacted Files	Coverage Δ
src/compute/boolean.rs	92.59% <85.00%> (-4.63%)	⬇️
src/compute/comparison/mod.rs	65.21% <96.07%> (+11.14%)	⬆️
src/array/utf8/mod.rs	82.71% <0.00%> (-0.93%)	⬇️
src/io/ipc/read/file.rs	97.32% <0.00%> (ø)
src/array/binary/mod.rs	90.12% <0.00%> (+1.23%)	⬆️

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