Support for Python 3.11

[Tenzer]

Is your feature request related to a problem? Please describe.
This package currently specifies it isn't compatible with Python 3.11 (released yesterday), blocking me from upgrading to the latest stable Python release:

python-bigquery-sqlalchemy/setup.py

Line 98 in f188944

python_requires=">=3.7, <3.11",

Describe the solution you'd like
Ideally, the upper bound should either be removed, or perhaps be set to <4.0.0 so this won't become a problem for each new minor Python release.

Describe alternatives you've considered

Additional context
I don't know the background for why the upper boundary is set to 3.10, so perhaps this will just be a matter of either removing the upper boundary or setting it to e.g. 4.0.

[potiuk]

Yeah. Would be cool. We also need it for Apache Airflow. I keep on rebasing apache/airflow#27264 and right now 3.11 stay is way better than it was when I started a month ago (PyArrow just released binary wheels two days ago and it unblocked our CI builds - there are a couple more for Google integration and bigquery sqlalchemy is on the list too.

If there is any way I can help - happy to help!