Use command instead of commands to start services

.drone.yml

@@ -29,8 +29,7 @@ services:
         image: postgres
         environment:
             - POSTGRES_HOST_AUTH_METHOD=trust
-        commands:
-            - "-c fsync=off -c synchronous_commit=off -c full_page_writes=off"
+        command: "-c fsync=off -c synchronous_commit=off -c full_page_writes=off"
         when:
             matrix:
                 DATABASE: postgresql