Move NODE_ENV variable to compose.yml file

- This should hopefully show that the setting shouldn't just be changed and instead be left as-is

.env.example

@@ -20,6 +20,3 @@ TINYBIRD_API_URL=https://api.tinybird.co
 TINYBIRD_ID=745d3247-e887-4873-84f7-7414ec758b83
 TINYBIRD_TRACKER_TOKEN=p.eyJxxxxx
 TINYBIRD_STATS_TOKEN=p.eyJxxxxx
-
-# Do not edit
-NODE_ENV=production

compose.yml

@@ -23,6 +23,7 @@ services:
     expose:
       - "2368"
     environment:
+      NODE_ENV: production
       url: https://${DOMAIN:?DOMAIN environment variable is required}
       database__client: mysql
       database__connection__host: db