feat(config): support configuration ReloadedEvent

[Reasno]

No description provided.

[codecov]

Codecov Report

Merging #142 (b6227a3) into master (2eed009) will increase coverage by 0.44%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #142      +/-   ##
==========================================
+ Coverage   80.35%   80.79%   +0.44%     
==========================================
  Files          89       89              
  Lines        3848     3854       +6     
==========================================
+ Hits         3092     3114      +22     
+ Misses        557      540      -17     
- Partials      199      200       +1     

Impacted Files	Coverage Δ
config/config.go	82.56% <100.00%> (+4.47%)	⬆️
config/module.go	81.66% <100.00%> (+12.17%)	⬆️
otkafka/processor/processor.go	79.33% <0.00%> (-1.66%)	⬇️

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