test(util/labelindex): improve benchmarks to cover labels with two di…

[SOF3]

…mensions

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.

Project coverage is 40.98%. Comparing base (a0c9fae) to head (fdb49de).
Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
util/iter/iter.go	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #85      +/-   ##
==========================================
+ Coverage   40.93%   40.98%   +0.05%     
==========================================
  Files         102      102              
  Lines        7046     7054       +8     
==========================================
+ Hits         2884     2891       +7     
- Misses       4002     4005       +3     
+ Partials      160      158       -2     

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