Rust crypto: emit VerificationRequestReceived events (#3525)

src/client.ts

@@ -2246,6 +2246,9 @@ export class MatrixClient extends TypedEventEmitter<EmittedEvents, ClientEventHa
 
         // attach the event listeners needed by RustCrypto
         this.on(RoomMemberEvent.Membership, rustCrypto.onRoomMembership.bind(rustCrypto));
+
+        // re-emit the events emitted by the crypto impl
+        this.reEmitter.reEmit(rustCrypto, [CryptoEvent.VerificationRequestReceived]);
     }
 
     /**