Test: change variable for ZHIPU_AI_API_KEY (#7684)

### What problem does this PR solve?

change variable for ZHIPU_AI_API_KEY

### Type of change

- [x] Update test case

.github/workflows/tests.yml

@@ -101,8 +101,6 @@ jobs:
           cd sdk/python && uv sync --python 3.10 --group test --frozen && source .venv/bin/activate && cd test/test_frontend_api && pytest -s --tb=short get_email.py test_dataset.py
           
       - name: Run http api tests against Elasticsearch
-        env:
-          ZHIPU_AI_API_KEY: ${{ secrets.ZHIPU_AI_API_KEY }}
         run: |
           export http_proxy=""; export https_proxy=""; export no_proxy=""; export HTTP_PROXY=""; export HTTPS_PROXY=""; export NO_PROXY=""
           export HOST_ADDRESS=http://host.docker.internal:9380
@@ -147,8 +145,6 @@ jobs:
           cd sdk/python && uv sync --python 3.10 --group test --frozen && source .venv/bin/activate && cd test/test_frontend_api && pytest -s --tb=short get_email.py test_dataset.py
 
       - name: Run http api tests against Infinity
-        env:
-          ZHIPU_AI_API_KEY: ${{ secrets.ZHIPU_AI_API_KEY }}
         run: |
           export http_proxy=""; export https_proxy=""; export no_proxy=""; export HTTP_PROXY=""; export HTTPS_PROXY=""; export NO_PROXY=""
           export HOST_ADDRESS=http://host.docker.internal:9380

sdk/python/test/test_http_api/conftest.py

@@ -49,8 +49,7 @@ MARKER_EXPRESSIONS = {
     "p3": "p1 or p2 or p3",
 }
 HOST_ADDRESS = os.getenv("HOST_ADDRESS", "http://127.0.0.1:9380")
-ZHIPU_AI_API_KEY = os.getenv("ZHIPU_AI_API_KEY")
-print(f"{ZHIPU_AI_API_KEY=}")
+ZHIPU_AI_API_KEY = os.getenv("ZHIPU_AI_API_KEY", "ca148e43209c40109e2bc2f56281dd11.BltyA2N1B043B7Ra")
 if ZHIPU_AI_API_KEY is None:
     pytest.exit("Error: Environment variable ZHIPU_AI_API_KEY must be set")