How to Auto-Refresh Livewire Component B When Component A Updates Data in Livewire V3

i have to components in one single page...

this is component CompA.php

public function requestToApprove() {

    $checktheApprovalrequestTbl = DB::table('temp__items')->count();
    $numberOfRequestedItems = DB::table('temp__items')->where('ask_to_approval','hold')->count();
    $requstedAllItems = DB::table('temp__items')->where('ask_to_approval','hold')->get();
    $requstedUserName = Auth::user()->user_name;
    $AllSuperAdmins = DB::table('sysusers')->where('user_role','Super Admin')->get();
    $requestUserRole = Auth::user()->user_role;


    if ($checktheApprovalrequestTbl === 0) {
        return session()->flash('approvalRequestError', 'Error: The operation cannot proceed because the table is empty.');
    } else {

        DB::table('temp__items')->update(['ask_to_approval' => 'pending']);

       foreach($AllSuperAdmins as $admin)
       {
        Mail::to($admin->user_email)->send(new requestToApproveItem($requestUserRole,$numberOfRequestedItems,$requstedUserName,$requstedAllItems));
       }

      $catchNotify = ItemRequestNotification::create([
        'user_email' => Auth::user()->user_email,
        'user_name' => Auth::user()->user_name,
        'pending_items' => $numberOfRequestedItems,
        'notification_message' => 'New Items pending for Approvals',
        'notification_type' => 'Pending for Approvals Notification',
       ]);

       

        return session()->flash('approvalRequest', 'Inventory List Successfully Sended for Approval');
    }
}

this is compB.php

public function PendingItemsNotify() { $this->notMarkedNotifications = DB::table('item_request_notifications')->where('notification_status', 'not marked')->count();

}

public function render() { $this->PendingItemsNotify(); }

when compA method worked in that same time compB want to refresh, count value automaticly want to update.

how to do that?

NOTE: -> iam using livewire V3 -> $this->emit() not support to V3