test(sync): Improve test_sync_rotate to prevent false positives

[msbrogli]

Background

The test_sync_rotate() had an assert with 0.0877% change of failing. As every CI job executes it 6 times, it had a change of 0.52% of failing, i.e., 1 out of 200 CI executions.

Acceptance Criteria

1. Modify test_sync_rotate() to reduce the chance of failing to 0.000483%, which reduces the chance of a CI failing from 0.52% to 0.00289797% (1 out of 35,000 CI executions).

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (e305645) 84.65% compared to head (a9b2a4c) 84.60%.
Report is 2 commits behind head on master.

❗ Current head a9b2a4c differs from pull request most recent head 3c9bac8. Consider uploading reports for the commit 3c9bac8 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #816      +/-   ##
==========================================
- Coverage   84.65%   84.60%   -0.06%     
==========================================
  Files         266      266              
  Lines       22123    22131       +8     
  Branches     3379     3380       +1     
==========================================
- Hits        18728    18723       -5     
- Misses       2734     2745      +11     
- Partials      661      663       +2     

Files	Coverage Δ
hathor/simulator/fake_connection.py	81.34% <44.44%> (-3.52%)	⬇️

... and 3 files with indirect coverage changes

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The base branch was changed.