Bump armhf versions

Signed-off-by: Alex Ellis <alexellis2@gmail.com>

docker-compose.armhf.yml

@@ -3,7 +3,7 @@ services:
     gateway:
         ports:
             - 8080:8080
-        image: openfaas/gateway:0.15.3-armhf
+        image: openfaas/gateway:0.15.4-armhf
         networks:
             - functions
         environment:
@@ -41,7 +41,7 @@ services:
     
     # auth service provide basic-auth plugin for system APIs
     basic-auth-plugin:
-        image: openfaas/basic-auth-plugin:0.15.3-armhf
+        image: openfaas/basic-auth-plugin:0.15.4-armhf
         networks:
             - functions
         environment:
@@ -71,7 +71,7 @@ services:
     faas-swarm:
         volumes:
             - "/var/run/docker.sock:/var/run/docker.sock"
-        image:  openfaas/faas-swarm:0.6.2-armhf
+        image:  openfaas/faas-swarm:0.7.1-armhf
         networks:
             - functions
         environment: