create broadcast notification when the user role is updated

app/Events/VolunteerRoleUpdated.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Events;
+
+use App\Models\Event;
+use App\Models\Task;
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Broadcasting\PrivateChannel;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcastNow;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class VolunteerRoleUpdated implements ShouldBroadcastNow
+{
+    use Dispatchable, InteractsWithSockets, SerializesModels;
+
+    public $role;
+    protected $userId;
+
+    /**
+     * Create a new event instance.
+     */
+    public function __construct($userId, $role)
+    {
+        $this->userId = $userId;
+        $this->role = $role;
+    }
+
+    /**
+     * Get the channels the event should broadcast on.
+     *
+     * @return array<int, \Illuminate\Broadcasting\Channel>
+     */
+    public function broadcastOn(): array
+    {
+        return [
+            new PrivateChannel('user.' . $this->userId),
+        ];
+    }
+
+    public function broadcastAs()
+    {
+        return 'volunteer.role.updated';
+    }
+}