Add AWS/Transfer as available service (#1618)

Signed-off-by: Pablo Balbi <pablo.l.balbi@gmail.com>
Co-authored-by: Cristian Greco <cristian@regolo.cc>

Author: thepalbi

pkg/config/services.go

@@ -856,6 +856,10 @@ var SupportedServices = serviceConfigs{
 			regexp.MustCompile("^(?P<GatewayId>[^:/]+)/(?P<GatewayName>[^:]+)$"),
 		},
 	},
+	{
+		Namespace: "AWS/Transfer",
+		Alias:     "transfer",
+	},
 	{
 		Namespace: "AWS/TransitGateway",
 		Alias:     "tgw",