test: set test-process-finalization as flaky

[IlyasShabi]

Set test-process-finalization as flaky

#63056

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.63%. Comparing base (80e0f14) to head (3bcacb1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #63057      +/-   ##
==========================================
- Coverage   89.65%   89.63%   -0.02%     
==========================================
  Files         708      708              
  Lines      220413   220413              
  Branches    42275    42280       +5     
==========================================
- Hits       197607   197571      -36     
- Misses      14658    14704      +46     
+ Partials     8148     8138      -10     

see 30 files with indirect coverage changes

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