refactor: benchmarks tidied up

[Alhanaqtah]

Description

The tests have been finalized to use the new API (b.Loop()). Also, the dependence on b.N in determining the size of the generated data has been eliminated.

---

• I have read and followed all requirements in CONTRIBUTING.md;
• I used LLM/AI assistance to make this pull request;

If you have used LLM/AI assistance please provide model name and full prompt:

Model: {{model-name}}
Prompt: {{prompt}}

[dkharms]

@Alhanaqtah hey! Sorry for a quite late answer.

Could you please fix issues I've left and also do following:

• fix pull request title (you can find rules in contribution guidelines);
• remove Fixes #263 line from description - I want do add new benchmarks as a part of this issue;

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.42%. Comparing base (b9c2c02) to head (32cfedf).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #308      +/-   ##
==========================================
- Coverage   71.49%   71.42%   -0.07%     
==========================================
  Files         204      204              
  Lines       14857    14738     -119     
==========================================
- Hits        10622    10527      -95     
+ Misses       3471     3449      -22     
+ Partials      764      762       -2     

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[dkharms]

@Alhanaqtah Hey! I am ready to merge this one. Could you please fix the merge conflicts?
@cheb0 please, could you take a quick look at the changes?