feat(ci): Add Redis service port configuration to test environment (#12855)

### What problem does this PR solve?

Added Redis port calculation and environment variable export to support
Redis service in test environment. The port is dynamically assigned
based on runner number to prevent conflicts during parallel test
execution. Removed by #12685

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

.github/workflows/tests.yml

@@ -167,6 +167,7 @@ jobs:
           EXPOSE_MYSQL_PORT=$((5455 + RUNNER_NUM * 10))
           MINIO_PORT=$((9000 + RUNNER_NUM * 10))
           MINIO_CONSOLE_PORT=$((9001 + RUNNER_NUM * 10))
+          REDIS_PORT=$((6379 + RUNNER_NUM * 10))
           TEI_PORT=$((6380 + RUNNER_NUM * 10))
           KIBANA_PORT=$((6601 + RUNNER_NUM * 10))
           SVR_HTTP_PORT=$((9380 + RUNNER_NUM * 10))
@@ -186,6 +187,7 @@ jobs:
           echo -e "EXPOSE_MYSQL_PORT=${EXPOSE_MYSQL_PORT}" >> docker/.env
           echo -e "MINIO_PORT=${MINIO_PORT}" >> docker/.env
           echo -e "MINIO_CONSOLE_PORT=${MINIO_CONSOLE_PORT}" >> docker/.env
+          echo -e "REDIS_PORT=${REDIS_PORT}" >> docker/.env
           echo -e "TEI_PORT=${TEI_PORT}" >> docker/.env
           echo -e "KIBANA_PORT=${KIBANA_PORT}" >> docker/.env
           echo -e "SVR_HTTP_PORT=${SVR_HTTP_PORT}" >> docker/.env

conf/service_conf.yaml

@@ -43,8 +43,7 @@ redis:
   db: 1
   username: ''
   password: 'infini_rag_flow'
-  host: 'localhost'
-  port: 6379
+  host: 'localhost:6379'
 task_executor:
   message_queue_type: 'redis'
 user_default_llm:

docker/service_conf.yaml.template

@@ -51,8 +51,7 @@ redis:
   db: 1
   username: '${REDIS_USERNAME:-}'
   password: '${REDIS_PASSWORD:-infini_rag_flow}'
-  host: '${REDIS_HOST:-redis}'
-  port: '${REDIS_PORT:-6379}'
+  host: '${REDIS_HOST:-redis}:6379'
 user_default_llm:
   default_models:
     embedding_model:

rag/utils/redis_conn.py

@@ -125,8 +125,8 @@ class RedisDB:
     def __open__(self):
         try:
             conn_params = {
-                "host": self.config["host"],
-                "port": int(self.config.get("port", 6379)),
+                "host": self.config["host"].split(":")[0],
+                "port": int(self.config.get("host", ":6379").split(":")[1]),
                 "db": int(self.config.get("db", 1)),
                 "decode_responses": True,
             }