Update Express Gateway Images to v1.16.4

library/express-gateway

@@ -3,5 +3,5 @@ GitRepo: https://github.com/ExpressGateway/docker-express-gateway.git
 
 Tags: 1.x, 1.16.x, 1.16.3, latest
 Architectures: arm64v8, amd64, i386, ppc64le, s390x
-GitCommit: f7b6973318f32ce5be4e67cd5fb3b43446d32e9a
+GitCommit: 1913ade15763cb26a22286295902bb85eed76dd7
 Directory: alpine