chore: bump php-cs-fixer to 3.65

[phil-davis]

https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/releases/tag/v3.65.0 was released last week.

It finds just one minor thing to change in the source code. Apply that change so that CI will pass.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.76%. Comparing base (48f48cf) to head (8a59036).
Report is 7 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #703      +/-   ##
============================================
- Coverage     98.76%   98.76%   -0.01%     
+ Complexity     1876     1875       -1     
============================================
  Files            71       71              
  Lines          5346     5344       -2     
============================================
- Hits           5280     5278       -2     
  Misses           66       66              

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