Not possible. If you don’t want the user to “pick” the file, you either have to put it in the plugin’s folder or fetch it (Network I/O). To get a file from anywhere on the machine, you need to show the file-picker dialog outside the plugin folder (File access).
I assume you want to add some sort of permanent asset? If so, it’s better to put them in the plugin folder. Or fetch it once and put it in the Secure Storage, but you may lose it when the user uninstalls the plugin, so check for it and re-fetch it if it was not there on load.