update the phpunit config file

Author: adibhanna

phpunit.xml

@@ -9,9 +9,14 @@
          processIsolation="false"
          stopOnFailure="false">
     <testsuites>
-        <testsuite name="Application Test Suite">
-            <directory suffix="Test.php">./tests</directory>
+        <testsuite name="Feature Tests">
+            <directory suffix="Test.php">./tests/Feature</directory>
         </testsuite>
+
+        <testsuite name="Unit Tests">
+            <directory suffix="Test.php">./tests/Unit</directory>
+        </testsuite>
+
         <testsuite name="Services Test Suite">
             <directory suffix="Test.php">./src/Services/*/Tests</directory>
         </testsuite>