try phpunit fix

Signed-off-by: dartcafe <github@dartcafe.de>

phpunit.integration.xml

@@ -1,7 +1,7 @@
 <phpunit bootstrap="tests/bootstrap.php" colors="true">
     <testsuites>
         <testsuite name="integration">
-            <directory>./tests/Integration</directory>
+            <directory>./Integration</directory>
         </testsuite>
     </testsuites>
 </phpunit>