Disable test_setup in Github CI (#1752)

Summary:
Pull Request resolved: #1752

In Github actions, this test fails like so:
```
FAILED python/tests/test_python_actors.py::test_setup - ValueError: error spawning proc mesh: statuses: Timeout(30.000905376s)=0..1
```
however, in internal testing it passes multiple stress tests.
Disable for now to recover green CI, and investigate the cause in the background.
(not reverting the introduction of this test since it does pass internally).

Reviewed By: colin2328

Differential Revision: D86225773

fbshipit-source-id: a9149a4df0e6c3a5df1cd9576a3ede6bc60b2a12

Author: dulinriley

python/tests/test_python_actors.py

@@ -1713,6 +1713,8 @@ async def async_setup_with_spawn() -> None:
     await bar.incr.call()
 
 
+# oss_skip: passes internally but fails on CI with "ValueError: error spawning proc mesh: statuses: Timeout(30.000905376s)=0..1"
+@pytest.mark.oss_skip
 def test_setup() -> None:
     procs = this_host().spawn_procs(bootstrap=setup_with_spawn)
     counter = procs.spawn("counter", Counter, 0)
@@ -1721,6 +1723,8 @@ def test_setup() -> None:
     time.sleep(10)
 
 
+# oss_skip: passes internally but fails on CI with "ValueError: error spawning proc mesh: statuses: Timeout(30.000905376s)=0..1"
+@pytest.mark.oss_skip
 def test_setup_async() -> None:
     procs = this_host().spawn_procs(bootstrap=async_setup_with_spawn)
     counter = procs.spawn("counter", Counter, 0)