chore(deps): update postgres docker tag to v16.8

docker-compose.yml

@@ -2,7 +2,7 @@ version: '3'
 
 services:
   db:
-    image: postgres:16.8@sha256:361c84f2bbe0f91135990841eb4eb4d2fe491f6e950686d9c746415dd1ffc65e
+    image: postgres:16.8@sha256:eb37f58646a901dc7727cf448cae36daaefaba79de33b5058dab79aa4c04aefb
     restart: unless-stopped
     volumes:
       - db-data:/var/lib/postgresql/data