[5.4] Fix persisting user and request info to session table

[devcircus]

Fixes #17581

Problem

The payload is correctly passed by reference in the addUserInformation and addRequestInformation methods, however, for the results of these two methods to be correctly merged with the payload, the payload must be passed by reference in the tap function of the getDefaultPayload method.

Before

Starting with a fresh laravel app, run php artisan session:table then php artisan make:auth.
Run php artisan migrate
Then log in and check your sessions table in the database.
The user id, ip address and user agent would be null.

After

Repeat the above steps and all columns will be populated correctly in db.

[taylorotwell]

Thanks