fix redis connection for compose setup

Author: phlmn

packaging/compose-deploy.yml

@@ -5,7 +5,7 @@ services:
     image: "ghcr.io/bugbakery/transcribee:latest"
     environment:
       TRANSCRIBEE_BACKEND_DATABASE_URL: postgresql://transcribee:transcribee@db:5432/transcribee
-      REDIS_HOST: redis
+      REDIS_URL: redis://redis
     ports:
       # configure your reverse-proxy so that the outside world can reach port 8000 of
       # this container via https.

packaging/compose-local.yml

@@ -7,7 +7,7 @@ services:
       context: ..
     environment:
       TRANSCRIBEE_BACKEND_DATABASE_URL: postgresql://transcribee:transcribee@db:5432/transcribee
-      REDIS_HOST: redis
+      REDIS_URL: redis://redis
       TESTUSER_PASSWORD: test
       WORKER_TOKEN_PATH: /var/transcribee/worker_token/token.txt
     ports: