Mise à jour recette mailer

symfony.lock

@@ -340,12 +340,12 @@
         "version": "v4.2.8"
     },
     "symfony/mailer": {
-        "version": "6.2",
+        "version": "6.4",
         "recipe": {
             "repo": "github.com/symfony/recipes",
             "branch": "main",
             "version": "4.3",
-            "ref": "2bf89438209656b85b9a49238c4467bff1b1f939"
+            "ref": "df66ee1f226c46f01e85c29c2f7acce0596ba35a"
         },
         "files": [
             "config/packages/mailer.yaml"