minor #18236 [Security] Use attributes for entity example (MrYamous)

This PR was merged into the 5.4 branch.

Discussion
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[Security] Use attributes for entity example

Use attributes in place of annotations for consistency as we are using it for entity examples in some other pages or for routing further on security doc

Commits
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2e0598b use attributes for entity example

Author: javiereguiluz

security.rst

@@ -125,32 +125,21 @@ from the `MakerBundle`_:
     use Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInterface;
     use Symfony\Component\Security\Core\User\UserInterface;
 
-    /**
-     * @ORM\Entity(repositoryClass=UserRepository::class)
-     */
+    #[ORM\Entity(repositoryClass: UserRepository::class)]
     class User implements UserInterface, PasswordAuthenticatedUserInterface
     {
-        /**
-         * @ORM\Id
-         * @ORM\GeneratedValue
-         * @ORM\Column(type="integer")
-         */
+        #[ORM\Id]
+        #[ORM\GeneratedValue]
+        #[ORM\Column(type: 'integer')]
         private $id;
 
-        /**
-         * @ORM\Column(type="string", length=180, unique=true)
-         */
+        #[ORM\Column(type: 'string', length: 180, unique: true)]
         private $email;
 
-        /**
-         * @ORM\Column(type="json")
-         */
+        #[ORM\Column(type: 'json')]
         private $roles = [];
 
-        /**
-         * @var string The hashed password
-         * @ORM\Column(type="string")
-         */
+        #[ORM\Column(type: 'string')]
         private $password;
 
         public function getId(): ?int