Value of trace_configs might be None

[estheruary]

Description

Ran into this in the wild, trace_configs might be None.

future: <Task finished name='Task-1' coro=<Client.start() done, defined at /Users/---/.pyenv/versions/---/lib/python3.11/site-packages/discord/client.py:724> exception=TypeError("'NoneType' object is not iterable")>
Traceback (most recent call last):
  File "/Users/---/.pyenv/versions/---/lib/python3.11/site-packages/discord/client.py", line 745, in start
    await self.login(token)
  File "/Users/---/.pyenv/versions/---/lib/python3.11/site-packages/discord/client.py", line 580, in login
    data = await self.http.static_login(token)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/---/.pyenv/versions/---/lib/python3.11/site-packages/discord/http.py", line 789, in static_login
    self.__session = aiohttp.ClientSession(
                     ^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/---/.pyenv/versions/---/lib/python3.11/site-packages/opentelemetry/instrumentation/aiohttp_client/__init__.py", l
ine 283, in instrumented_init
    client_trace_configs = list(kwargs.get("trace_configs", ()))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'NoneType' object is not iterable

trace_configs is Optional[Sequence]

None -> kwargs.get("trace_configs", ()) == None --> TypeError

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Does This PR Require a Core Repo Change?

• Yes. - Link to PR:
• No.

Checklist:

See contributing.md for styleguide, changelog guidelines, and more.

• Followed the style guidelines of this project
• Changelogs have been updated
• Unit tests have been added
• Documentation has been updated

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: estheruary / name: Estelle Poulin (8b9edd1)

[shalevr]

If trace_configs did not exist in kwargs the code throws a KeyError exception, so you need to verify this and use kwargs.get().

client_trace_configs = list(kwargs.get("trace_configs") or [])

[estheruary]

Done!

[srikanthccv]

Please add CHANGELOG entry

[estheruary]

Please add CHANGELOG entry

Done!

[nemoshlag]

Thanks @estheruary for fixing my bug 🙏