fix: update tests to use ConstantFlightServerDelayed for timeout

[NguyenHoangSon96]

Closes #

Proposed Changes

• Use "ConstantFlightServerDelayed" for timeout test cases

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• A test has been added if appropriate
• Tests pass
• Commit messages are conventional
• Sign CLA (if not already signed)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.70%. Comparing base (c35f372) to head (7b7a67b).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #176      +/-   ##
==========================================
- Coverage   69.79%   69.70%   -0.09%     
==========================================
  Files          35       35              
  Lines        2314     2314              
==========================================
- Hits         1615     1613       -2     
- Misses        699      701       +2     

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[bednar]

LGTM 🚀