Fix compile errors

[security-companion]

code adapted according to ruby doc, see eg. https://docs.rs/sysinfo/latest/sysinfo/struct.Cpu.html#method.frequency

[Neo23x0]

Ah, nice to see someone working on it. But I couldn't get the project as far as I wanted back then when I learned Rust.
Is it useful for you?

[security-companion]

Hi,
until now I did not manage to compile it on my Windows-dev machine. The bundled-4_2_3 in the cargo.toml is causing issues. I tried bindgen as suggested here but until now no success.
I wanted to see if the github workflow runs successfully to figure out if it is a problem on my machine. Would be great if you could approve it.
But the python-loki has been of great usage for me, so thanks a lot for that.
Are you developing on windows or linux?
Greetings