Revert docker tag bump to 0.10.0

**What**
- Revert to the original docker tags because we want to for the bump
until after the official release

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>

docker-compose.arm64.yml

@@ -5,7 +5,7 @@ services:
             - "/var/run/docker.sock:/var/run/docker.sock"
         ports:
             - 8080:8080
-        image: functions/gateway:0.10.0-arm64
+        image: functions/gateway:0.7.0-arm64
         networks:
             - functions
         environment:

docker-compose.armhf.yml

@@ -3,7 +3,7 @@ services:
     gateway:
         ports:
             - 8080:8080
-        image: openfaas/gateway:0.10.0-armhf
+        image: openfaas/gateway:0.9.14-armhf
         networks:
             - functions
         environment:

docker-compose.yml

@@ -3,7 +3,7 @@ services:
     gateway:
         ports:
             - 8080:8080
-        image: openfaas/gateway:0.10.0
+        image: openfaas/gateway:0.9.14
         networks:
             - functions
         environment: