fix(desktop): fix test CI

Author: git-f0x

src/desktop.rs

@@ -870,7 +870,7 @@ trait SystemdManger {
 #[cfg(all(test, not(windows)))]
 mod tests {
     use super::*;
-    use std::{env, fs, path::Path, path::PathBuf};
+    use std::{env, fs, path::Path};
     use tempfile::tempdir;
 
     struct EnvVarGuard {
@@ -881,17 +881,17 @@ mod tests {
     impl EnvVarGuard {
         fn set(key: &'static str, value: &Path) -> Self {
             let original = env::var(key).ok();
-            std::env::set_var(key, value);
+            unsafe { std::env::set_var(key, value) };
             Self { key, original }
         }
     }
 
     impl Drop for EnvVarGuard {
         fn drop(&mut self) {
             if let Some(ref original) = self.original {
-                std::env::set_var(self.key, original);
+                unsafe { std::env::set_var(self.key, original) };
             } else {
-                std::env::remove_var(self.key);
+                unsafe { std::env::remove_var(self.key) };
             }
         }
     }
@@ -1108,7 +1108,10 @@ Icon=vmware-workstation\n\
         let resolved = resolve_desktop_entry(&mut cache, &ctx, &DesktopResolveOptions::default());
         assert!(resolved.icon().is_some());
         assert!(resolved.exec().is_some());
-        assert_eq!(resolved.startup_wm_class(), Some(&format!("crx_{}", id)));
+        assert_eq!(
+            resolved.startup_wm_class(),
+            Some(format!("crx_{}", id).as_str())
+        );
     }
 
     #[test]