[Mime] Fix lowest versions of deps

Author: nicolas-grekas

composer.json

@@ -28,14 +28,14 @@
         "symfony/dependency-injection": "^4.4|^5.0|^6.0",
         "symfony/property-access": "^4.4|^5.1|^6.0",
         "symfony/property-info": "^4.4|^5.1|^6.0",
-        "symfony/serializer": "^5.4.26|^6.2.13"
+        "symfony/serializer": "^5.4.26|~6.2.13|^6.3.2"
     },
     "conflict": {
         "egulias/email-validator": "~3.0.0",
         "phpdocumentor/reflection-docblock": "<3.2.2",
         "phpdocumentor/type-resolver": "<1.4.0",
         "symfony/mailer": "<4.4",
-        "symfony/serializer": "<5.4.26|>=6.2,<6.2.13"
+        "symfony/serializer": "<5.4.26|>=6,<6.2.13|>=6.3,<6.3.2"
     },
     "autoload": {
         "psr-4": { "Symfony\\Component\\Mime\\": "" },