Remove weight parameter from TDIGEST.ADD and fix tests

[dvora-h]

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Description of change

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[codecov-commenter]

Codecov Report

Base: 92.22% // Head: 92.19% // Decreases project coverage by -0.03% ⚠️

Coverage data is based on head (b01613f) compared to base (b0883b7).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2408      +/-   ##
==========================================
- Coverage   92.22%   92.19%   -0.04%     
==========================================
  Files         110      110              
  Lines       28898    28894       -4     
==========================================
- Hits        26652    26638      -14     
- Misses       2246     2256      +10     

Impacted Files	Coverage Δ
redis/commands/bf/info.py	100.00% <ø> (ø)
redis/commands/bf/commands.py	98.48% <100.00%> (-0.02%)	⬇️
tests/test_asyncio/test_bloom.py	99.64% <100.00%> (ø)
tests/test_bloom.py	99.67% <100.00%> (ø)
redis/commands/bf/__init__.py	96.73% <0.00%> (-3.27%)	⬇️
tests/test_cluster.py	96.85% <0.00%> (-0.24%)	⬇️
tests/test_asyncio/test_pubsub.py	99.37% <0.00%> (-0.16%)	⬇️
tests/test_asyncio/test_cluster.py	97.28% <0.00%> (-0.14%)	⬇️

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[chayim]

@dvora-h This works. I think we can finally remove the experimental flag, from this merge.

[dvora-h]

@chayim Wouldn't you rather remove the flag after RedisBloom 2.4 release?