add custom asyncio.wait_for()

This patch uses `wait_for2` package to implement `asyncio.wait_for()` for
Python < 3.12.

In Python 3.12, `asyncio.wait_for()` is implemented in terms of
`asyncio.timeout()` which fixed a bunch of issues. However, this was never
backported (because of the lack of `async.timeout()`) and there are still many
remainig issues, specially in Python 3.10, in `async.wait_for()`.

See https://github.com/python/cpython/pull/98518

tests/test_pipeline.py

@@ -24,6 +24,7 @@ from pipecat.pipeline.task import PipelineParams, PipelineTask
 from pipecat.processors.filters.identity_filter import IdentityFilter
 from pipecat.processors.frame_processor import FrameDirection, FrameProcessor
 from pipecat.tests.utils import HeartbeatsObserver, run_test
+from pipecat.utils.asyncio.timeout import wait_for
 
 
 class TestPipeline(unittest.IsolatedAsyncioTestCase):
@@ -250,7 +251,7 @@ class TestPipelineTask(unittest.IsolatedAsyncioTestCase):
         await task.queue_frame(TextFrame(text="Hello Downstream!"))
 
         try:
-            await asyncio.wait_for(
+            await wait_for(
                 asyncio.shield(task.run(PipelineTaskParams(loop=asyncio.get_event_loop()))),
                 timeout=1.0,
             )
@@ -286,7 +287,7 @@ class TestPipelineTask(unittest.IsolatedAsyncioTestCase):
 
         await task.queue_frame(TextFrame(text="Hello!"))
         try:
-            await asyncio.wait_for(
+            await wait_for(
                 asyncio.shield(task.run(PipelineTaskParams(loop=asyncio.get_event_loop()))),
                 timeout=1.0,
             )
@@ -306,7 +307,7 @@ class TestPipelineTask(unittest.IsolatedAsyncioTestCase):
         pipeline = Pipeline([identity])
         task = PipelineTask(pipeline, idle_timeout_secs=0.2, cancel_on_idle_timeout=False)
         try:
-            await asyncio.wait_for(
+            await wait_for(
                 asyncio.shield(task.run(PipelineTaskParams(loop=asyncio.get_event_loop()))),
                 timeout=0.3,
             )