[10.x] Independent token expiration (#9236)

* Add independent token expiration to sanctum.md

* Update sanctum.md

---------

Co-authored-by: Taylor Otwell <[email protected]>

Author: Sjoertjuh

sanctum.md

@@ -237,6 +237,14 @@ By default, Sanctum tokens never expire and may only be invalidated by [revoking
 'expiration' => 525600,
 ```
 
+If you would like to specify the expiration time of each token independently, you may do so by providing the expiration time as the third argument to the `createToken` method:
+
+```php
+return $user->createToken(
+    'token-name', ['*'], now()->addWeek()
+)->plainTextToken;
+```
+
 If you have configured a token expiration time for your application, you may also wish to [schedule a task](/docs/{{version}}/scheduling) to prune your application's expired tokens. Thankfully, Sanctum includes a `sanctum:prune-expired` Artisan command that you may use to accomplish this. For example, you may configure a scheduled tasks to delete all expired token database records that have been expired for at least 24 hours:
 
 ```php