[Bug]: [Low Priority] Cannot run tests from a test's local folder. `conftest` is not found.

[afourney]

Describe the bug

Prior to #1110, it was possible to run the tests from a test's local directory. E.g.

cd autogen/test/agentchat/contrib
python test_compressible_agent.py

or

cd autogen/test/agentchat/contrib
pytest test_compressible_agent.py

But now, doing so raises the error:

ModuleNotFoundError: No module named 'conftest'

Now, tests need to be run from the test root folder:

cd autogen/test
pytest agentchat/contrib/test_compressible_agent.py

This isn't a real problem, but it is a change in prior behavior, and it took me a minute to understand what was going on despite considerable prior experience with the tests.

Steps to reproduce

No response

Expected Behavior

No response

Screenshots and logs

No response

Additional Information

No response

[rickyloynd-microsoft]

I just logged the same issue as #1137 without realizing it was a dup. But I would give this bug a higher priority, because we have blog posts directing users to run some of these tests, and running pytest within the test folder (as described above) is a pain, and makes debugging into these tests harder. I propose a different solution in #1137.