Add TDIGEST.TRIMMED_MEAN

[bodevone]

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Description of change

Add TDIGEST.TRIMMED_MEAN command
Closes #2196

[bodevone]

@dvora-h I am having problem with running test on correct version of BloomFilter (test fails to find command of TDIGEST.TRIMMED_MEAN)
Am I doing something wrong?

[dvora-h]

@bodevone You're right, the issue is in the docker, I'll trigger the CI again after it will fix

[dvora-h]

@bodevone redismod docker fixed, now it should work.

[dvora-h]

@bodevone You need to add this command to MODULE_CALLBACKS (in init.py) to convert the response to float.
Let me know if you can do it or you want me to take it.

[codecov-commenter]

Codecov Report

Merging #2300 (b8737d6) into master (ab5272c) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@ Coverage Diff @@ ## master #2300 +/- ## ========================================== + Coverage 92.16% 92.18% +0.02%  ========================================== Files 111 111 Lines 28702 28713 +11 ========================================== + Hits 26454 26470 +16  + Misses 2248 2243 -5 

Impacted Files	Coverage Δ
redis/commands/bf/__init__.py	100.00% <ø> (ø)
redis/commands/bf/commands.py	98.37% <100.00%> (+0.02%)	⬆️
tests/test_bloom.py	99.60% <100.00%> (+0.01%)	⬆️
tests/test_cluster.py	96.96% <0.00%> (+0.11%)	⬆️
tests/test_asyncio/test_pubsub.py	99.49% <0.00%> (+0.16%)	⬆️
tests/test_asyncio/test_search.py	98.71% <0.00%> (+0.32%)	⬆️

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[dvora-h]

I hope it's okay that I ended up doing it myself because we wanted to include it in the next version

[bodevone]

@dvora-h I am sorry for late response and yes it's totally okay