Update composer.json to remove Drush 9 and Drush 10 support. Drush 11 is required for Drupal 10.

composer.json

@@ -6,7 +6,7 @@
     "extra": {
         "drush": {
             "services": {
-                "drush.services.yml": "^9 || ^10"
+                "drush.services.yml": "^11"
             }
         }
     }