ProductivitySuite: Fix CI failure with faqgen microservice

[hteeyeoh]

Description

Endpoint content-type change in faqgen microservice causing failure in CI.

Issues

#1270

Type of change

List the type of change like below. Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would break existing design and interface)
• Others (enhancement, documentation, validation, etc.)

Dependencies

n/a

Tests

n/a

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues found.

Scanned Files

[hteeyeoh]

Code changes able to pass on local machine but in ci test it failed with langserve error
| Traceback (most recent call last):
| File "/home/user/.local/lib/python3.11/site-packages/starlette/responses.py", line 255, in wrap
| await func()
| File "/home/user/.local/lib/python3.11/site-packages/starlette/responses.py", line 244, in stream_response
| async for chunk in self.body_iterator:
| File "/home/user/comps/llms/faq-generation/tgi/langchain/llm.py", line 77, in stream_generator
| from langserve.serialization import WellKnownLCSerializer
| File "/home/user/.local/lib/python3.11/site-packages/langserve/init.py", line 8, in
| from langserve.client import RemoteRunnable
| File "/home/user/.local/lib/python3.11/site-packages/langserve/client.py", line 24, in
| from httpx._types import AuthTypes, CertTypes, CookieTypes, HeaderTypes, VerifyTypes
| ImportError: cannot import name 'VerifyTypes' from 'httpx._types' (/home/user/.local/lib/python3.11/site-packages/httpx/_types.py)
+------------------------------------

• '[' 200 -ne 200 ']'

[hteeyeoh]

This error is langserve upstream issue as mentioned in this issue as well opea-project/GenAIComps#969