Update code for pub/sub to listen on the stateful connection object.

[judepereira]

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[codecov]

Codecov Report

Merging #1207 into master will increase coverage by 0.05%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #1207      +/-   ##
============================================
+ Coverage     78.73%   78.79%   +0.05%     
  Complexity     5787     5787              
============================================
  Files           424      424              
  Lines         19449    19449              
  Branches       2205     2205              
============================================
+ Hits          15314    15324      +10     
+ Misses         3102     3098       -4     
+ Partials       1033     1027       -6

Impacted Files	Coverage Δ	Complexity Δ
.../java/io/lettuce/core/resource/PromiseAdapter.java	38.46% <0%> (-15.39%)	2% <0%> (-1%)
...ttuce/core/support/ClientResourcesFactoryBean.java	46.66% <0%> (-13.34%)	4% <0%> (-1%)
.../io/lettuce/core/protocol/ReconnectionHandler.java	79.72% <0%> (ø)	22% <0%> (ø)	⬇️
...va/io/lettuce/core/protocol/RedisStateMachine.java	79.86% <0%> (+0.68%)	90% <0%> (+1%)	⬆️
src/main/java/io/lettuce/core/RedisPublisher.java	80.17% <0%> (+0.88%)	5% <0%> (ø)	⬇️
...a/io/lettuce/core/pubsub/PubSubCommandHandler.java	88.46% <0%> (+1.28%)	27% <0%> (+1%)	⬆️
.../io/lettuce/core/dynamic/ReactiveTypeAdapters.java	85.81% <0%> (+1.35%)	1% <0%> (ø)	⬇️
src/main/java/io/lettuce/core/ScanStream.java	87.66% <0%> (+1.94%)	24% <0%> (ø)	⬇️
...a/io/lettuce/core/protocol/ConnectionWatchdog.java	79.73% <0%> (+1.96%)	37% <0%> (ø)	⬇️

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[mp911de]

Thank you for your contribution. That's merged now.