Fix linter warnings

Author: Sytten

src/err.rs

@@ -57,8 +57,8 @@ pub enum ErrorImpl {
 impl fmt::Display for ErrorImpl {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
-            ErrorImpl::Message(msg) => write!(f, "{}", msg),
-            ErrorImpl::Rquickjs(e) => write!(f, "{}", e),
+            ErrorImpl::Message(msg) => write!(f, "{msg}"),
+            ErrorImpl::Rquickjs(e) => write!(f, "{e}"),
         }
     }
 }

src/lib.rs

@@ -403,8 +403,7 @@ mod tests {
             let mut serializer = ValueSerializer::from_context(cx).unwrap();
             expected.serialize(&mut serializer).unwrap();
             let mut deserializer = ValueDeserializer::from(serializer.value);
-            let actual = A::deserialize(&mut deserializer).unwrap();
-            actual
+            A::deserialize(&mut deserializer).unwrap()
         })
     }
 }