[DNM]enhance: add integration test and stress test in python CI

[jiaqizho]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.88%. Comparing base (90fe08c) to head (95f9cef).
⚠️ Report is 16 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (90fe08c) and HEAD (95f9cef). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (90fe08c)	HEAD (95f9cef)
	1	0

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #427      +/-   ##
==========================================
- Coverage   67.25%   57.88%   -9.38%     
==========================================
  Files         107       12      -95     
  Lines        9047     1275    -7772     
  Branches     1250        0    -1250     
==========================================
- Hits         6085      738    -5347     
+ Misses       2962      537    -2425     

Flag	Coverage Δ
python	57.88% <ø> (+12.23%)	⬆️

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