update dockercompose to use env file in fixtures (tensorzero#2973)

Co-authored-by: Gabriel Bianconi <[email protected]>

Author: chaance

ui/fixtures/docker-compose.yml

@@ -73,6 +73,8 @@ services:
     volumes:
       - .:/fixtures
       - ~/.aws:/root/.aws
+    env_file:
+      - .env
     environment:
       CLICKHOUSE_DEFAULT_ACCESS_MANAGEMENT: 1
       CLICKHOUSE_HOST: clickhouse