update test

tests/Controller/PostControllerTest.php

@@ -40,7 +40,7 @@ class PostControllerTest extends WebTestCase
 
     public function testIndex(): void
     {
-        $crawler = $this->client->request('GET', '/post');
+        $crawler = $this->client->request('GET', '/posts');
 
         self::assertResponseStatusCodeSame(200);
         self::assertPageTitleContains('Post index');