Nicola Soranzo 4588a27c0f Code cleanups from pyupgrade ...

Found by running:

```
make pyupgrade
```

2024-03-10 03:32:47 +00:00

..

conftest.py

…

test_cbv.py

Code cleanups from pyupgrade

2024-03-10 03:32:47 +00:00

test_configuration.py

…

test_datetime_parsing.py

…

test_fetch_schema.py

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test_id_fields.py

…