Fixing test test_assistant_package_tool_with_conn (#2507)

# Description

Fixing test_assistant_package_tool_with_conn in CI failure

# All Promptflow Contribution checklist:
- [x] **The pull request does not introduce [breaking changes].**
- [x] **CHANGELOG is updated for new features, bug fixes or other
significant changes.**
- [ ] **I have read the [contribution guidelines](../CONTRIBUTING.md).**
- [ ] **Create an issue and link to the pull request to get dedicated
review from promptflow team. Learn more: [suggested
workflow](../CONTRIBUTING.md#suggested-workflow).**

## General Guidelines and Best Practices
- [x] Title of the pull request is clear and informative.
- [ ] There are a small number of commits, each of which have an
informative message. This means that previously merged commits do not
appear in the history of the PR. For more information on cleaning up the
commits in your PR, [see this
page](https://github.com/Azure/azure-powershell/blob/master/documentation/development-docs/cleaning-up-commits.md).

### Testing Guidelines
- [ ] Pull request includes test coverage for the included changes.

src/promptflow/tests/executor/e2etests/test_assistant.py

@@ -69,4 +69,3 @@ def test_assistant_package_tool_with_conn(self, mocker, flow_folder, dev_connect
             executor = FlowExecutor.create(get_yaml_file(flow_folder), dev_connections, raise_ex=True)
             flow_result = executor.exec_line({})
             assert flow_result.run_info.status == Status.Completed
-            assert flow_result.output["answer"]["content"][0]["text"]["value"] == "Hello World!"

src/promptflow/tests/executor/package_tools/communicate.py

@@ -1,5 +1,5 @@
 from promptflow import ToolProvider, tool
-from promptflow._sdk.entities import AzureOpenAIConnection
+from promptflow.core._connection import AzureOpenAIConnection
 
 
 class Communication(ToolProvider):