Fix Lock crash, and versioning 4.3.3

[dvora-h]

Pull Request check-list

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Description of change

fixes #2209

[codecov-commenter]

Codecov Report

Merging #2210 (be0e4e8) into master (a2365d1) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@ Coverage Diff @@ ## master #2210 +/- ## ========================================== - Coverage 91.84% 91.83% -0.02%  ========================================== Files 108 108 Lines 27691 27691 ========================================== - Hits 25433 25429 -4  - Misses 2258 2262 +4 

Impacted Files	Coverage Δ
redis/lock.py	100.00% <ø> (ø)
setup.py	0.00% <ø> (ø)
tests/test_asyncio/test_search.py	98.35% <0.00%> (-0.33%)	⬇️
tests/test_cluster.py	96.91% <0.00%> (-0.12%)	⬇️

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