chore: import upstream snapshot with attribution

bazel/default_doctest_pytest_plugin.py

@@ -0,0 +1,10 @@
+"""This file is injected for all doctest targets in the repo by default."""
+import pytest
+
+import ray
+
+
+@pytest.fixture(autouse=True, scope="module")
+def shutdown_ray():
+    ray.shutdown()
+    yield