Fix typo

Co-authored-by: Franz Busch <privat@franz-busch.de>

quiche/include/quiche.h

@@ -678,7 +678,7 @@ ssize_t quiche_conn_send_ack_eliciting_on_path(quiche_conn *conn,
                            const struct sockaddr *local, size_t local_len,
                            const struct sockaddr *peer, size_t peer_len);
 
-// Returns true if there are retired source connection ids and fill the the parameters
+// Returns true if there are retired source connection ids and fill the parameters
 bool quiche_conn_retired_scid_next(const quiche_conn *conn, const uint8_t **out, size_t *out_len);
 
 // Returns the number of source Connection IDs that are retired.