Update the PHP CS Fixer configuration

[mspirkov]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Fixed issues

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.83%. Comparing base (fd3bf9e) to head (6316345).
⚠️ Report is 50 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #112      +/-   ##
============================================
+ Coverage     98.43%   99.83%   +1.40%     
- Complexity      230      245      +15     
============================================
  Files            14       16       +2     
  Lines           510      622     +112     
============================================
+ Hits            502      621     +119     
+ Misses            8        1       -7     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.