docs(stack-encrypt): name the error a wrong query type gives, as the compiler now words it

The `Takes` doc quoted the error over `ToOwned::Owned`. The operator
methods take their value through `QueryInput` since the review of #1595,
so the compiler names `QueryInput::Value`, as the trybuild snapshot does.

Refs #1596.

Author: coderdan

packages/stack-encrypt/src/marker.rs

@@ -370,7 +370,7 @@ impl<V> QueryValue<V> for TakesAny {}
 ///
 /// A value of another type is refused at compile time. Since `V` is the one
 /// type the marker accepts, the compiler reports it as a mismatch of the
-/// value's owned form: "type mismatch resolving `<u64 as ToOwned>::Owned
+/// value's query form: "type mismatch resolving `<u64 as QueryInput>::Value
 /// == String`".
 pub struct Takes<V>(PhantomData<fn() -> V>);
 impl<V> value_sealed::Sealed<V> for Takes<V> {}