refactor TestPauseResumeE2E with synctest for accuracy

[yzqzss]

close: #464

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.28%. Comparing base (0977fe3) to head (6804d02).
⚠️ Report is 74 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #466   +/-   ##
=======================================
  Coverage   56.28%   56.28%           
=======================================
  Files         130      130           
  Lines        8037     8037           
=======================================
  Hits         4524     4524           
  Misses       3154     3154           
  Partials      359      359           

Flag	Coverage Δ
e2etests	40.59% <ø> (ø)
unittests	29.24% <ø> (ø)

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[NGTmeaty]

Looks good. Thank you!!!