feat(connection): nng as stateful dialer

[ngjaying]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 93.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 71.12%. Comparing base (d752170) to head (ac3bee5).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/io/mqtt/client/client.go	71.43%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3180      +/-   ##
==========================================
- Coverage   71.14%   71.12%   -0.02%     
==========================================
  Files         386      386              
  Lines       43290    43309      +19     
==========================================
+ Hits        30797    30800       +3     
- Misses      10057    10071      +14     
- Partials     2436     2438       +2     

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