chore: remove doctrine annotation

BC: annotation support dropped, use attributes

Author: fogrye

composer.json

@@ -19,8 +19,7 @@
   "require" : {
     "php" : ">=8.1",
     "thecodingmachine/graphqlite" : "^6.0|^7.0",
-    "symfony/validator": "^6|^7",
-    "doctrine/annotations": "^1.13 || ^2.0.1"
+    "symfony/validator": "^6|^7"
   },
   "require-dev": {
     "phpunit/phpunit": "^9.6.5",