wip: fix failing test on Python 3.9

- For some reason, the docstring comparison for the reflection check seemed to fail in Python 3.9
- I shortened the docstring to make it easier to compare in VSCode test output, that seemed to fix
  the test. Maybe 3.9 doesn't strip leading spaces in the docstring (e.g. like textwrap.dedent)?

Author: gregbrowndev

tests/contrib/test_opentelemetry.py

@@ -390,11 +390,7 @@ async def run(self) -> str:
 
 @activity.defn
 def sync_activity(param: typing.Any) -> str:
-    """An activity that uses tracing features.
-
-    When executed in a process pool, we expect the trace context to be available
-    from the parent process.
-    """
+    """An activity that uses tracing features."""
     inner_tracer = get_tracer("sync_activity")
     with inner_tracer.start_as_current_span(
         "child_span",
@@ -455,7 +451,7 @@ async def test_activity_trace_propagation(
             name="sync_activity",
             qualname="sync_activity",
             module="tests.contrib.test_opentelemetry",
-            docstring="An activity that uses tracing features.\n\nWhen executed in a process pool, we expect the trace context to be available\nfrom the parent process.\n",
+            docstring="An activity that uses tracing features.",
             annotations={"param": "typing.Any", "return": "str"},
         )
     ]