dns: start adding benchmarks for performance regressions

[BeryJu]

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🔨 Latest commit	3fef6e8
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Bundle Report

Bundle size has no change ✅

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.02%. Comparing base (89a6362) to head (3fef6e8).
Report is 1 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1325      +/-   ##
==========================================
+ Coverage   60.81%   61.02%   +0.20%     
==========================================
  Files         108      108              
  Lines        6163     6170       +7     
==========================================
+ Hits         3748     3765      +17     
+ Misses       2057     2046      -11     
- Partials      358      359       +1     

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