fix: Enable assertions in PHPUnit configuration for CI environment

Author: endou-mame

.github/workflows/phpstan.yml

@@ -68,4 +68,4 @@ jobs:
           key: "phpstan-result-cache-${{ github.run_id }}"
 
       - name: Run PHPUnit tests
-        run: vendor/bin/phpunit --configuration=phpunit.xml.dist --testdox --colors=always
+        run: php -d zend.assertions=1 vendor/bin/phpunit --configuration=phpunit.xml.dist --testdox --colors=always

phpunit.xml.dist

@@ -12,13 +12,6 @@
   timeoutForMediumTests="10"
   timeoutForLargeTests="60"
 >
-  <php>
-    <!-- NOTE: アサーションを有効化（CI環境用） -->
-    <ini name="assert.active" value="1"/>
-    <ini name="assert.exception" value="1"/>
-    <ini name="zend.assertions" value="1"/>
-  </php>
-
   <testsuites>
     <testsuite name="Unit">
       <directory suffix="Test.php">tests/Unit</directory>