fix(mongodb): edit note

Author: ldecarvalho-doc

pages/managed-mongodb-databases/how-to/manage-users.mdx

@@ -139,7 +139,7 @@ You can follow the steps below to update a user's role(s) to the one(s) of your
     If the call was successful, you will get the payload with the new roles as a response.
 
     <Message type="note">
-      Assigning roles upon user creation will be available shortly. Refer to the [Scaleway Changelog](/docs/changelog/?product=mongodb) to keep up with the latest Managed MongoDB® updates.
+      Assigning roles upon user creation will be possible by the second half of 2025. Refer to the [Scaleway Changelog](/docs/changelog/?product=mongodb) to keep up with the latest Managed MongoDB® updates.
     </Message>