testing: use result

Signed-off-by: simonsan <[email protected]>

tests/config.rs

@@ -9,7 +9,7 @@ use std::{fs, path::PathBuf};
 #[rstest]
 fn test_parse_rustic_configs_is_ok(#[files("config/*.toml")] config_path: PathBuf) -> Result<()> {
     let toml_string = fs::read_to_string(config_path)?;
-    let _ = toml::from_str::<RusticConfig>(&toml_string);
+    let _ = toml::from_str::<RusticConfig>(&toml_string)?;
 
     Ok(())
 }