fix: Fix improper usage of sysinfo library methods

[famouswizard]

In the previous implementation, the methods System::name() and System::os_version() were being called directly on the System structure, which was not the correct way to use the sysinfo library. These methods are now properly invoked through an instance of the sys structure, ensuring that the code follows the correct usage pattern.

This update ensures that the script works as expected and properly outputs system information.
The fix aligns the code with best practices for interacting with the sysinfo library.