fix(core): fix check temp path permission on mac os, fix #6256

[0x-jerry]

close #6256

[tweidinger]

Will check this PR in the upcoming days but am wondering if https://github.com/tauri-apps/tauri/pull/9072/files#diff-903ee43f2eb846686e5baf219fc515ff00de27369cef1e81b37164de847d2e90 does fix the underlying issue, as it resolves symlinks now before checking. This is in dev, so not sure if it can/is/will be back ported and if other changes influence behavior.

[0x-jerry]

@tweidinger I tested how path::is_symlink works, and seems it only checks the exact symbolic path, eg.

use std::{
    env,
    path::PathBuf,
};

fn main() {
    let p_var = PathBuf::from("/var");

    println!("{:?}", p_var.is_symlink()); // => true

    let p_var = env::temp_dir();

    println!("{:?}", p_var.is_symlink()); // => false
}

This means any subpath of a symbolic folder will return false, so https://github.com/tauri-apps/tauri/pull/9072/files#diff-903ee43f2eb846686e5baf219fc515ff00de27369cef1e81b37164de847d2e90 may not be able to fix subpath permission check.