Fix list equal for empty offset list array

[viirya]

Which issue does this PR close?

Closes #1817.

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

[HaoYang670]

I guess this PR is related to #1620.

[codecov-commenter]

Codecov Report

Merging #1818 (fbead0d) into master (b5fbd11) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1818      +/-   ##
==========================================
- Coverage   83.46%   83.45%   -0.02%     
==========================================
  Files         199      199              
  Lines       56600    56673      +73     
==========================================
+ Hits        47244    47294      +50     
- Misses       9356     9379      +23     

Impacted Files	Coverage Δ
arrow/src/array/equal/list.rs	96.47% <100.00%> (+0.08%)	⬆️
arrow/src/array/equal/mod.rs	96.20% <100.00%> (+0.10%)	⬆️
parquet/src/util/memory.rs	87.17% <0.00%> (-2.30%)	⬇️
arrow/src/datatypes/native.rs	66.66% <0.00%> (ø)
parquet/src/arrow/async_reader.rs	0.00% <0.00%> (ø)
arrow/src/array/data.rs	84.16% <0.00%> (+0.18%)	⬆️
arrow/src/datatypes/datatype.rs	65.79% <0.00%> (+0.37%)	⬆️
parquet/src/compression.rs	89.68% <0.00%> (+1.08%)	⬆️
parquet/src/file/footer.rs	98.11% <0.00%> (+2.74%)	⬆️

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[viirya]

Thanks @tustvold @HaoYang670