Pre Start tests failing on python 3.12

[Tyskiep99]

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Example Code

# run the tests against python 3.12

Description

Hello, I noticed that on python3.12 the following tests fail:
test_backend_pre_start.py and test_test_pre_start.py

with the error:

FAILED app/tests/scripts/test_backend_pre_start.py::test_init_successful_connection - AttributeError: 'called_once_with' is not a valid assertion. Use a spec for the mock if 'called_once_with' is meant to be an attribute.. Did you mean: 'assert_called_once_with'?
FAILED app/tests/scripts/test_test_pre_start.py::test_init_successful_connection - AttributeError: 'called_once_with' is not a valid assertion. Use a spec for the mock if 'called_once_with' is meant to be an attribute.. Did you mean: 'assert_called_once_with'?

Operating System

Linux

Operating System Details

using base python:3.12 image

Python Version

Python 3.12.3

Additional Context

It seems to happens with the mock behaving differently and not mocking the sqlmodel.Session module, I am not sure yet if the mock lib has been bump, but so far I could not see anything mention of any relevant changes in either python or mock releases, also there is a lot of change, I might have miss some.
I noticed that the package sqlmodel.Session was not been mock so I tried using from app.core.model.Session, the mock then worked but the call is being done in __enter__ due to the with statement and the select(1) param doesnt match due to not being the same reference.

[bo-unitysvc]

From what I can see, called_once_with should be assert_called_once_with. Also, the test setup appears incorrect since both tests will fail regardless of the Python version.