TEST: Added test cases for Create Dataset HTTP API (#5724)

### What problem does this PR solve?

1. add test cases
2. integrate workflows/tests.yml into CI pipeline

### Type of change

- [x] add testcases

sdk/python/test/libs/auth.py

@@ -0,0 +1,25 @@
+#
+#  Copyright 2025 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+from requests.auth import AuthBase
+
+
+class RAGFlowHttpApiAuth(AuthBase):
+    def __init__(self, token):
+        self._token = token
+
+    def __call__(self, r):
+        r.headers["Authorization"] = f'Bearer {self._token}'
+        return r