Remove remaining references to PHPStan

[acelaya]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.29%. Comparing base (49be62b) to head (263ebe3).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #184   +/-   ##
=========================================
  Coverage     99.29%   99.29%           
  Complexity      181      181           
=========================================
  Files            49       49           
  Lines           568      568           
=========================================
  Hits            564      564           
  Misses            4        4           

☔ View full report in Codecov by Harness.
📢 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.