Add Andrew de Andrade to AUTHORS

AUTHORS

@@ -77,3 +77,4 @@ Pekka Enberg <penberg@scylladb.com>
 Mark M <m.mim95@gmail.com>
 Bartosz Burclaf <burclaf@gmail.com>
 Marcus King <marcusking01@gmail.com>
+Andrew de Andrade <andrew@deandrade.com.br>