fix(generator): EventServiceProvider don't get registered correctly

[Mohammad-Alavi]

Description

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Refactor (refactoring a current feature, method, etc...)
• Code Coverage (adding/removing/updating/refactoring tests)
• New feature (non-breaking change which adds functionality)
• Remove feature (non-breaking change which removes functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 17 lines in your changes missing coverage. Please review.

Project coverage is 4.04%. Comparing base (e20b4b4) to head (dd33af4).
Report is 2 commits behind head on 8.x.

Files with missing lines	Patch %	Lines
src/Generator/Commands/ContainerApiGenerator.php	0.00%	15 Missing ⚠️
...rc/Generator/Commands/ServiceProviderGenerator.php	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##               8.x    #217      +/-   ##
==========================================
- Coverage     4.05%   4.04%   -0.02%     
  Complexity     688     688              
==========================================
  Files           93      93              
  Lines         2886    2896      +10     
==========================================
  Hits           117     117              
- Misses        2769    2779      +10     

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