cPanel
This document will help you to update your project using cPanel. At the very first login to your cPanel account.
Then go to the project directory and click on the File Manager.
Admin Panel Update
Now go to admin panel project directory. Now upload the admin.zip file and extract it.
This will replace your old admin panel files.
Clear Cache
Now go to your admin panel and login to it and then go to Extra menu on bottom and click on Info menu.
Clear the cache
Note: It's important to clear the cache to make sure that the new update is loaded.
Conclusion
Congratulations! You have successfully updated the admin panel on cPanel.