Investigate test failure

[betsybookwyrm]

https://github.com/QUT-Digital-Observatory/twittersphere/actions/runs/9201275693/job/25309202243#step:4:120 and reproduced locally.

Error message:

tmp_path = PosixPath('/tmp/pytest-of-betsy/pytest-0/test_prepare_filter_db0')

    def test_prepare_filter_db(tmp_path):
    
        target_db = tmp_path / "test.db"
    
        runner = CliRunner()
    
        result = runner.invoke(
            cli.twittersphere,
            [
                "prepare",
                str(data_path / "test_sample.json"),
                str(data_path / "test_search_recent.json"),
                str(data_path / "test_hydrated_profiles.json"),
                str(target_db),
            ],
        )
>       assert result.exit_code == 0
E       assert 2 == 0
E        +  where 2 = <Result SystemExit(2)>.exit_code

tests/test_end_to_end.py:39: AssertionError

There are also some black failures, probably due to an update in black rules since the last time the tests were run.

Recommend updating dependencies first #19 in case there's something in there that's breaking things.