Set timeout-minutes to 4 for all OS in tests

Author: samsonasik

.github/workflows/tests.yaml

@@ -21,7 +21,7 @@ jobs:
                 php-versions: ['8.3', '8.4', '8.5']
 
         runs-on: ${{ matrix.os }}
-        timeout-minutes: ${{ matrix.os == 'windows-latest' && 4 || 3 }}
+        timeout-minutes: 4
 
         name: PHP ${{ matrix.php-versions }} tests (${{ matrix.os }})
         steps: