Replace math/rand with math/rand/v2

[komuw]

• Fixes: track go/issues/61716: add math/rand/v2 #342

[codecov-commenter]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (ed0f7fd) 69.65% compared to head (f281eb6) 69.58%.

Files	Patch %	Lines
internal/tst/tst.go	0.00%	1 Missing ⚠️
middleware/log.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #411      +/-   ##
==========================================
- Coverage   69.65%   69.58%   -0.07%     
==========================================
  Files          52       52              
  Lines        6192     6192              
==========================================
- Hits         4313     4309       -4     
- Misses       1556     1559       +3     
- Partials      323      324       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.