Fix phpunit configuration

Author: renekorss

phpunit.xml

@@ -1,10 +1,10 @@
 <?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 includeUncoveredFiles="true" processUncoveredFiles="true">
-    <include>
+<phpunit>
+  <filter>
+    <whitelist processUncoveredFilesFromWhitelist="true">
       <directory suffix=".php">src</directory>
-    </include>
-  </coverage>
+    </whitelist>
+  </filter>
   <testsuites>
     <testsuite name="RKD Banklink Test Suite">
       <directory suffix=".php">./tests/</directory>