Merge pull request #358 from Nielsvanpach/chore/phpunit-config

update phpunit config

phpunit.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <phpunit
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.4/phpunit.xsd"
     bootstrap="vendor/autoload.php"
     executionOrder="depends,defects"
     beStrictAboutOutputDuringTests="true"
@@ -10,14 +10,15 @@
     cacheDirectory=".phpunit.cache"
     requireCoverageMetadata="true"
     beStrictAboutCoverageMetadata="true">
-    <testsuites>
-        <testsuite name="default">
-            <directory>tests/Unit</directory>
-        </testsuite>
-    </testsuites>
-    <coverage>
-        <include>
-            <directory suffix=".php">src</directory>
-        </include>
-    </coverage>
+  <testsuites>
+    <testsuite name="default">
+      <directory>tests/Unit</directory>
+    </testsuite>
+  </testsuites>
+  <coverage/>
+  <source>
+    <include>
+      <directory suffix=".php">src</directory>
+    </include>
+  </source>
 </phpunit>