style: cargo fmt sweep under rustc 1.97.1 (toolchain reformat, no semantic change)

src/actor.rs

@@ -99,7 +99,7 @@ pub extern "C-unwind" fn trampoline() {
     };
 
     let outcome = match panic::catch_unwind(panic::AssertUnwindSafe(b)) {
-        Ok(())       => Outcome::Exit,
+        Ok(()) => Outcome::Exit,
         Err(payload) => {
             if payload.is::<StopSentinel>() {
                 Outcome::Stopped