chore: generate code

Author: sumup-bot[bot]

src/Types/Reader.php

@@ -50,6 +50,15 @@ class Reader
      */
     public ?array $metadata = null;
 
+    /**
+     * Identifier of the system-managed service account associated with this reader.
+     * Present only for readers that are already paired.
+     * This field is currently in beta and may change.
+     *
+     * @var string|null
+     */
+    public ?string $serviceAccountId = null;
+
     /**
      * The timestamp of when the reader was created.
      *