fix: allow three chars for size property in teamer entity

src/Entity/Teamer.php

@@ -128,7 +128,7 @@ class Teamer implements TimestampableEntityInterface
     #[Assert\NotBlank(message: 'Bitte gib deine Sprache(n) an', groups: ['profile', 'profile_preflight'])]
     private ?string $language = null;
 
-    #[ORM\Column(length: 2, nullable: true)]
+    #[ORM\Column(length: 3, nullable: true)]
     private ?string $size = null;
 
     #[ORM\Column(nullable: true)]