[core] Increase test_get_or_create_actor to a medium-sized test

[edoakes]

This test has been periodically timing out on Windows. New test cases were added in December, so I think we're just bumping up against the 60s limit.

[gemini-code-assist]

Code Review

This pull request addresses a flaky test, test_get_or_create_actor, which has been timing out on Windows. The change moves the test to a medium-sized test group in the Bazel build configuration, effectively increasing its time limit. This is a reasonable solution for the described problem. The change is simple, correct, and maintains the alphabetical order of the test lists in python/ray/tests/BUILD.bazel. I have no further comments.

[Kunchd]

I was looking at this test file, and I feel that there are also tests within the file that can be rewritten as a c++ unit test instead of hoping that a race condition is triggered (e.g. https://github.com/ray-project/ray/blob/master/python/ray/tests/test_get_or_create_actor.py#L104-L120).

I'm currently working on rewriting the linked test, but feel free to merge if this is urgent.

[edoakes]

I was looking at this test file, and I feel that there are also tests within the file that can be rewritten as a c++ unit test instead of hoping that a race condition is triggered (e.g. https://github.com/ray-project/ray/blob/master/python/ray/tests/test_get_or_create_actor.py#L104-L120).

I'm currently working on rewriting the linked test, but feel free to merge if this is urgent.

Makes sense, but let's merge this change to deflake immediately. You can change it back to small once you cull some of the Python tests.

[Kunchd]

Looks good. I'll move the test back to small after the prune PR.