events: Allow internal use of deprecated fields

crates/ruma-common/src/events/room/encrypted.rs

@@ -305,6 +305,7 @@ impl From<MegolmV1AesSha2ContentInit> for MegolmV1AesSha2Content {
     /// Creates a new `MegolmV1AesSha2Content` from the given init struct.
     fn from(init: MegolmV1AesSha2ContentInit) -> Self {
         let MegolmV1AesSha2ContentInit { ciphertext, sender_key, device_id, session_id } = init;
+        #[allow(deprecated)]
         Self { ciphertext, sender_key, device_id, session_id }
     }
 }

crates/ruma-common/src/events/room_key_request.rs

@@ -100,6 +100,7 @@ impl RequestedKeyInfo {
         sender_key: String,
         session_id: String,
     ) -> Self {
+        #[allow(deprecated)]
         Self { algorithm, room_id, sender_key, session_id }
     }
 }