migrate PHPUnit configuration

phpunit.xml

@@ -1,20 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
-    backupGlobals="false" 
-    backupStaticAttributes="false" 
-    bootstrap="vendor/autoload.php" 
-    colors="true" 
-    convertErrorsToExceptions="true" 
-    convertNoticesToExceptions="true" 
-    convertWarningsToExceptions="true" 
-    processIsolation="false" 
-    stopOnFailure="false" 
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
-  <coverage processUncoveredFiles="true">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    backupGlobals="false"
+    backupStaticProperties="false"
+    bootstrap="vendor/autoload.php"
+    colors="true"
+    processIsolation="false"
+    stopOnFailure="false"
+    cacheDirectory=".phpunit.cache"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.5/phpunit.xsd">
+  <source>
     <include>
       <directory suffix=".php">./app</directory>
     </include>
-  </coverage>
+  </source>
   <testsuites>
     <testsuite name="Feature">
       <directory suffix="Test.php">./tests/Feature</directory>