tune docker config

docker-compose.yml

@@ -141,9 +141,9 @@ services:
     stop_grace_period: 60s
     command: >
       celery -A iaai_scraper.worker.celery_app worker
-      --loglevel=info --concurrency=4 --pool=prefork
+      --loglevel=info --concurrency=${CELERY_WORKER_CONCURRENCY:-4} --pool=prefork
       --pidfile=/tmp/celery-worker.pid
-      -Q scraping --max-tasks-per-child=5
+      -Q scraping --max-tasks-per-child=${CELERY_WORKER_MAX_TASKS_PER_CHILD:-5}
     healthcheck:
       test: ["CMD-SHELL", "test -f /tmp/celery-worker.pid && kill -0 $(cat /tmp/celery-worker.pid)"]
       interval: 60s