refactor: replace uint64 and int32 with atomic types in tests

[alexandear]

Because atomic types are easier to use.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.6%. Comparing base (a7624f5) to head (b1b05ca).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #7941   +/-   ##
=====================================
  Coverage   81.6%   81.6%           
=====================================
  Files        304     304           
  Lines      23389   23389           
=====================================
+ Hits       19090   19093    +3     
+ Misses      3911    3908    -3     
  Partials     388     388           

see 2 files with indirect coverage changes

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[pellared]

@alexandear, can you please resolve sync with main and resolve conflicts? You can also allow us to make changes on your PR so that we can sync ourselves in future.

[alexandear]

@pellared rebased.

can also allow us to make changes on your PR so that we can sync ourselves in future.

I'll change in future PRs.