Simplify `RawTask::clone` to simply use copy
diff --git a/src/raw.rs b/src/raw.rs
index ed3ee97..a45635e 100644
--- a/src/raw.rs
+++ b/src/raw.rs
@@ -83,13 +83,7 @@
 
 impl<F, R, S, T> Clone for RawTask<F, R, S, T> {
     fn clone(&self) -> Self {
-        Self {
-            header: self.header,
-            schedule: self.schedule,
-            tag: self.tag,
-            future: self.future,
-            output: self.output,
-        }
+        *self
     }
 }