Update phpunit.xml to match create-php-package standards and remove phpstan

Co-authored-by: srtfisher <346399+srtfisher@users.noreply.github.com>

Author: Copilot

composer.json

@@ -20,8 +20,7 @@
     },
     "require-dev": {
         "alleyinteractive/alley-coding-standards": "^2.0",
-        "mantle-framework/testkit": "^1.0",
-        "szepeviktor/phpstan-wordpress": "^2.0"
+        "mantle-framework/testkit": "^1.0"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,
@@ -53,11 +52,9 @@
     "scripts": {
         "phpcbf": "phpcbf .",
         "phpcs": "phpcs .",
-        "phpstan": "phpstan --memory-limit=512M",
         "phpunit": "phpunit",
         "test": [
             "@phpcs",
-            "@phpstan",
             "@phpunit"
         ]
     }

phpstan.neon

@@ -1,21 +1,24 @@
 <?xml version="1.0"?>
 <phpunit
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
   bootstrap="tests/bootstrap.php"
   backupGlobals="false"
   colors="true"
-  xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.2/phpunit.xsd"
-  cacheDirectory=".phpunit.result.cache">
+  cacheDirectory=".phpunit.result.cache"
+>
   <testsuites>
     <testsuite name="Feature">
-      <directory suffix="Test.php">tests/Feature</directory>
+      <directory suffix=".php">tests/Feature</directory>
     </testsuite>
     <testsuite name="Unit">
-      <directory suffix="Test.php">tests/Unit</directory>
+      <directory suffix=".php">tests/Unit</directory>
     </testsuite>
   </testsuites>
   <php>
-    <env name="MANTLE_USE_SQLITE" value="true" />
-    <env name="WP_SKIP_DB_CREATE" value="true" />
+    <ini name="error_reporting" value="-1" />
+    <ini name="display_errors" value="1" />
+    <!-- <env name="MANTLE_USE_SQLITE" value="true" /> -->
+    <!-- <env name="WP_SKIP_DB_CREATE" value="true" /> -->
   </php>
 </phpunit>