fixing tests

Author: Jacq

.github/workflows/tests.yml

@@ -47,7 +47,7 @@ jobs:
     env:
       # The hostname used to communicate with the Redis service container
       REDIS_HOST: redis
-      REDIS_SENTINEL_HOST: redis-sentinel
+      REDIS_SENTINEL_HOST: 127.0.0.1
       # The default Redis port
       REDIS_PORT: 6379
       REDIS_SENTINEL_PORT: 26379