Fix asyncio Search crash, and versioning 4.3.1

[dvora-h]

Pull Request check-list

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Description of change

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[codecov-commenter]

Codecov Report

Merging #2175 (69042b5) into master (c51435d) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2175      +/-   ##
==========================================
+ Coverage   91.98%   92.00%   +0.01%     
==========================================
  Files         108      108              
  Lines       27392    27393       +1     
==========================================
+ Hits        25197    25202       +5     
+ Misses       2195     2191       -4     

Impacted Files	Coverage Δ
setup.py	0.00% <ø> (ø)
redis/commands/search/__init__.py	89.47% <100.00%> (+0.18%)	⬆️
tests/test_cluster.py	97.14% <0.00%> (+0.23%)	⬆️

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