Use PHPUnit 9.3

Author: canvural

composer.json

@@ -24,7 +24,7 @@
         "phpstan/extension-installer": "^1.0",
         "phpstan/phpstan": "^0.12.25",
         "phpstan/phpstan-phpunit": "^0.12.8",
-        "phpunit/phpunit": "^9.1",
+        "phpunit/phpunit": "^9.3",
         "spatie/phpunit-snapshot-assertions": "^4.2",
         "symfony/var-dumper": "^5.1",
         "thecodingmachine/phpstan-safe-rule": "^1.0"

phpunit.xml

@@ -1,6 +1,7 @@
+<?xml version="1.0"?>
 <phpunit
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
     beStrictAboutChangesToGlobalState="true"
     beStrictAboutCoversAnnotation="true"
     beStrictAboutOutputDuringTests="true"
@@ -13,17 +14,17 @@
     executionOrder="random"
     verbose="true"
 >
-    <testsuites>
-        <testsuite name="Unit tests">
-            <directory>./tests/Unit</directory>
-        </testsuite>
-        <testsuite name="Integration tests">
-            <directory>./tests/Integration</directory>
-        </testsuite>
-    </testsuites>
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./src</directory>
-        </whitelist>
-    </filter>
-</phpunit>
+  <coverage processUncoveredFiles="true">
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </coverage>
+  <testsuites>
+    <testsuite name="Unit tests">
+      <directory>./tests/Unit</directory>
+    </testsuite>
+    <testsuite name="Integration tests">
+      <directory>./tests/Integration</directory>
+    </testsuite>
+  </testsuites>
+</phpunit>