feat(backend): Support aiohttp.BasicAuth in make_request (#10283)

Fixes https://github.com/Significant-Gravitas/AutoGPT/issues/10284

### Changes 🏗️

- Allows passing an `aiohttp.BasicAuth` object directly to the `auth`
parameter of the `make_request` function.
- Converts tuple-based auth credentials to `aiohttp.BasicAuth` objects
before making the request.

Fixes
[AUTOGPT-SERVER-4AX](https://sentry.io/organizations/significant-gravitas/issues/6709824432/).
The issue was that: aiohttp's ClientSession.request received a plain
tuple for `auth` instead of an `aiohttp.BasicAuth` object, causing
OAuth2 token exchange failure.

This fix was generated by Seer in Sentry, triggered by Bently. 👁️ Run
ID: 185767

Not quite right? [Click here to continue debugging with
Seer.](https://sentry.io/organizations/significant-gravitas/issues/6709824432/?seerDrawer=true)

### Checklist 📋

#### For code changes:
- [x] I have clearly listed my changes in the PR description
- [x] I have made a test plan
- [x] I have tested my changes according to the test plan

#### For configuration changes:
- [x] `.env.example` is updated or already compatible with my changes
- [x] `docker-compose.yml` is updated or already compatible with my
changes
- [x] I have included a list of my configuration changes in the PR
description (under **Changes**)

<details>
  <summary>Examples of configuration changes</summary>

  - Changing ports
  - Adding new services that need to communicate with each other
  - Secrets or environment variable changes
  - New or infrastructure changes such as databases
</details>

Co-authored-by: seer-by-sentry[bot] <157164994+seer-by-sentry[bot]@users.noreply.github.com>

autogpt_platform/backend/backend/util/request.py

@@ -353,6 +353,10 @@ class Requests:
         max_redirects: int = 10,
         **kwargs,
     ) -> Response:
+        # Convert auth tuple to aiohttp.BasicAuth if necessary
+        if "auth" in kwargs and isinstance(kwargs["auth"], tuple):
+            kwargs["auth"] = aiohttp.BasicAuth(*kwargs["auth"])
+
         if files is not None:
             if json is not None:
                 raise ValueError(