fix: Imgproxy container exposure (#740)

blueprints/imgproxy/docker-compose.yml

@@ -3,6 +3,8 @@ services:
   imgproxy:
     image: darthsim/imgproxy:v3.30.1
     restart: unless-stopped
+    expose:
+      - 8080
     environment:
       IMGPROXY_KEY: ${IMGPROXY_KEY}
       IMGPROXY_SALT: ${IMGPROXY_SALT}