Fix trio MultiError

```
/Users/jrgoodle/.local/lib/python3.8/site-packages/pygoodle/app/app.py:15: TrioDeprecationWarning: trio.MultiError is deprecated since Trio 0.22.0; use BaseExceptionGroup (on Python 3.11 and later) or exceptiongroup.BaseExceptionGroup (earlier versions) instead (https://github.com/python-trio/trio/issues/2211)
```