Hi pierluigif36235945 ,
There are many ways.
1. Use adobe Remote update manager which can help you in silent update applications installed in end users machine, for more details please check these links
https://helpx.adobe.com/enterprise/package/help/using-remote-update-manager.html
https://helpx.adobe.com/creative-cloud/kb/rum-update.html
2. Create a update only package and deploy it via Casper or any other deployment tool that you use.
3. Create a package with "Elevated privileges option checked" and in Package configuration click on Change and select "Admin users update via Adobe Update Manager" This option allows users to manage applications and updates even when they do not have Administrator privileges.
To allow your users without Administrator credentials to manage applications and updates, select this option.
Once you have deployed a package with elevated privileges, to revoke the elevated privileges later, you need to create a Creative Cloud desktop app-only package with Elevated Privileges deselected and deploy it. Similarly, to grant elevated privileges to existing users, you need to create a Creative Cloud desktop app only package with Elevated Privileges selected and deploy it.
The Elevated Privileges option is available only when you have selected Show Applications And Updates Via The Apps Panel. For more details please check this link - https://helpx.adobe.com/enterprise/package/help/creating-packages.html
Note - Step 3 has to be done only once, as it will grant access to Standard users to update there applications everytime there is an update for the CC applications. However Creative cloud desktop applications needs, Admin rights and if there is an Update or Upgrade for Creative Cloud Desktop Application , standard users will not be able to update it.
~Rohit