[Bug] Deprecated unittest aliases were removed in Python 3.11

[tirkarthi]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

dbt/test/integration/027_cycle_test/test_cycles.py:        with self.assertRaisesRegexp(Exception, message):
dbt/test/integration/027_cycle_test/test_cycles.py:        with self.assertRaisesRegexp(Exception, message):

assertRaisesRegexp was removed in Python 3.11 in PR python/cpython#28268

Expected Behavior

assertRaisesRegex is the recommended equivalent.

Steps To Reproduce

Python 3.11 will throw an error for the tests

Relevant log output

No response

Environment

- OS:Ubuntu
- Python:3.11
- dbt:

What database are you using dbt with?

other (mention it in "Additional Context")

Additional Context

No response

[jtcohen6]

Thanks a bunch for this, @tirkarthi!

I'm going to open this up as a good, straightforward first contribution for anyone who wants it. Sounds like it's a two-line change :)

[jtcohen6]

Resolved by #4136