Fix recordCommandLatency to work properly

[jongyeol]

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In previous commit f350431 , wrapped redisCommand was changed to command. And, recordCommandLatency() is not called properly in 5.1.0.RELEASE, because DefaultChannelPromise.isVoid() == false. This PR fixed it.

Here is a sample for user-side: https://gist.github.com/jongyeol/edd80cb080aaab1fa619c7001b0ccbed

[codecov]

Codecov Report

Merging #874 into master will increase coverage by 0.06%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #874      +/-   ##
============================================
+ Coverage     81.04%   81.11%   +0.06%     
- Complexity     5674     5681       +7     
============================================
  Files           409      409              
  Lines         18364    18364              
  Branches       2125     2125              
============================================
+ Hits          14884    14896      +12     
+ Misses         2461     2459       -2     
+ Partials       1019     1009      -10

Impacted Files	Coverage Δ	Complexity Δ
.../java/io/lettuce/core/protocol/CommandHandler.java	78.26% <100%> (+1.35%)	105 <0> (+3)	⬆️
.../io/lettuce/core/dynamic/ReactiveTypeAdapters.java	83.1% <0%> (-0.68%)	1% <0%> (ø)
src/main/java/io/lettuce/core/RedisPublisher.java	79.92% <0%> (+0.37%)	5% <0%> (ø)	⬇️
...e/core/metrics/DefaultCommandLatencyCollector.java	77.5% <0%> (+4.16%)	22% <0%> (+1%)	⬆️
...java/io/lettuce/core/metrics/CommandLatencyId.java	70.73% <0%> (+4.87%)	10% <0%> (+1%)	⬆️

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[mp911de]

Thanks a lot. Will include this fix in the next release.

[mp911de]

Thanks a lot. That's merged, polished, and backported now.