Added pull_policy=never to all compose.yml files

.devcontainer/.docker/base-devcontainer.compose.yml

@@ -4,6 +4,7 @@ services:
   ghost:
     build:
       target: base-devcontainer
+    pull_policy: never
     command: ["sleep", "infinity"]
     environment:
       - DEVCONTAINER=true

.devcontainer/.docker/development.compose.yml

@@ -6,6 +6,7 @@ services:
   ghost:
     build:
       target: development
+    pull_policy: never
     command: ["yarn", "dev"]
     volumes:
       - ../../.yarncache:/workspaces/ghost/.yarncache

.devcontainer/.docker/full-devcontainer.compose.yml

@@ -4,6 +4,7 @@ services:
   ghost:
     build:
       target: full-devcontainer
+    pull_policy: never
     command: ["sleep", "infinity"]
     environment:
       - DEVCONTAINER=true