Fix trigger name collision in StatementTest

[Divang Sharma (divang)]

• Changed TCUpdateCountAfterRaiseError to use unique trigger name with RandomUtil
• Changed TCGenKeys to use unique trigger name with RandomUtil
• Prevents 'There is already an object named Trigger in the database' errors
• Resolves test failures and deadlocks caused by duplicate trigger names

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.85%. Comparing base (1bb278b) to head (53a53c8).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2950      +/-   ##
============================================
+ Coverage     60.81%   60.85%   +0.04%     
- Complexity     4971     4977       +6     
============================================
  Files           151      151              
  Lines         35223    35223              
  Branches       5900     5900              
============================================
+ Hits          21420    21436      +16     
+ Misses        10934    10925       -9     
+ Partials       2869     2862       -7     

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