Fix typo: Responder => Requester

Author: sosthene-nitrokey

src/interchanges.rs

@@ -1,4 +1,4 @@
 pub const SIZE: usize = 3072;
 pub type Data = iso7816::Data<SIZE>;
 pub type Responder<'pipe> = interchange::Responder<'pipe, Data, Data>;
-pub type Requester<'pipe> = interchange::Responder<'pipe, Data, Data>;
+pub type Requester<'pipe> = interchange::Requester<'pipe, Data, Data>;