update label "Pay"

src/pages/Payment/index.js

@@ -493,7 +493,7 @@ const Index = () => {
                             onClick={() => paymentClick()}
                             sx={{ mt: 4, ...PAY_CONTAINED_BUTTON_SX }}
                         >
-                        <FormattedMessage id="selectPaymentMethodBtn"/>
+                        <FormattedMessage id="pay"/>
                     </Button>
                     <Button
                             component="span"