Not compatible with SQLAlchemy 2.0

[icemac]

After the release of zope.sqlalchemy 3.0 the tests fail here, because zope.sqlalchemy now supports SQLAlchemy 2.0 but z3c.sqlalchemy does not.

See https://github.com/zopefoundation/z3c.sqlalchemy/actions/runs/5235300226/jobs/9452045557 for a failed test run. (But be advised: It's not just this import error, there are more errors below it. I tried to fix them and gave up as I know too little about the necessary changes to support SQLAlchemy 2.0.)

Meanwhile I declared SQLAlchemy < 2 on master: 69dd520 and created #14 with my changes.

CCing to possible users of this package (according to #13):

@dataflake @ale-rt

[dataflake]

I have no sqlalchemy knowledge. I only did what I have to do to make Products.ZSSQLAlchemyDA work.

[ale-rt]

I can have a look

[icemac]

Released the fix for this issue in https://pypi.org/project/z3c.sqlalchemy/2.1/.