docs: add duy3101 as a contributor

[allcontributors]

Adds @duy3101 as a contributor for code.

This was requested by debora-ito in this comment

[codecov-commenter]

Codecov Report

Merging #2430 (facf722) into master (b3a4f3c) will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2430   +/-   ##
=========================================
  Coverage     77.72%   77.73%           
  Complexity      366      366           
=========================================
  Files          1247     1247           
  Lines         39471    39471           
  Branches       3088     3088           
=========================================
+ Hits          30680    30682    +2     
+ Misses         7307     7306    -1     
+ Partials       1484     1483    -1     

Flag	Coverage Δ	Complexity Δ
unittests	77.73% <ø> (+<0.01%)	366.00 <ø> (ø)

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Impacted Files	Coverage Δ	Complexity Δ
...ty/internal/IdleConnectionCountingChannelPool.java	87.80% <0.00%> (+2.43%)	0.00% <0.00%> (ø%)

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
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