chore: expose s3 endpoint publicly for docker compose (#1319)

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## Changes

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docker/dev-full/docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   rivet-server:
     build:
@@ -162,6 +160,9 @@ services:
     volumes:
       - ./seaweedfs:/etc/seaweedfs:ro
       - seaweedfs-data:/var/lib/seaweedfs
+    ports:
+      # S3
+      - "8000:8000"
     networks:
       - rivet-network
     healthcheck:

docker/dev-full/rivet-server/config.yaml

@@ -34,7 +34,7 @@ server:
   s3:
     region: us-east-1
     endpoint_internal: http://seaweedfs:8000
-    endpoint_external: http://seaweedfs:8000
+    endpoint_external: http://127.0.0.1:8000
     access_key_id: admin
     secret_access_key: admin
   nats: