minor #19887 [Scheduler] Small type fixes for scheduler.rst (Big-Shark)

This PR was submitted for the 7.0 branch but it was merged into the 6.4 branch instead.

Discussion
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[Scheduler] Small type fixes for scheduler.rst

Commits
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027f32a Small type fixes for scheduler.rst

Author: javiereguiluz

scheduler.rst

@@ -662,7 +662,7 @@ being transferred and processed by its handler::
             return $this->schedule ??= (new Schedule())
                 ->with(
                     // ...
-                );
+                )
                 ->before(function(PreRunEvent $event) {
                     $message = $event->getMessage();
                     $messageContext = $event->getMessageContext();
@@ -675,13 +675,13 @@ being transferred and processed by its handler::
 
                     // allow to call the ShouldCancel() and avoid the message to be handled
                         $event->shouldCancel(true);
-                }
+                })
                 ->after(function(PostRunEvent $event) {
                     // Do what you want
-                }
+                })
                 ->onFailure(function(FailureEvent $event) {
                     // Do what you want
-                }
+                });
         }
     }