fix: add extra_hosts for Linux Docker Engine compatibility

Author: theothersideofgod

docker-compose.local-email.yml

@@ -30,6 +30,8 @@ services:
     container_name: constructive-admin-server
     image: constructive:dev
     entrypoint: ["constructive", "server", "--host", "0.0.0.0", "--port", "3000", "--origin", "*"]
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
     environment:
       NODE_ENV: development
       PORT: "3000"
@@ -92,6 +94,8 @@ services:
     entrypoint: ["node", "jobs/knative-job-service/dist/run.js"]
     depends_on:
       - send-email-link
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
     environment:
       NODE_ENV: development
       # Postgres - use host.docker.internal to connect to local postgres