Fix pytest warnings

[georgelgeback]

I got tired of seeing so many warnings, so I fixed them.

What I manually fixed:

• Warning: Support for class-based config is deprecated, use ConfigDict instead.

  • This was already set in base_schema.py so we didn't need it. Remove this from some files:

class Config:
    from_attributes = True

• SADeprecationWarning: Callable object passed to the default parameter for attribute 'standard_food_preferences' in a ORM-mapped Dataclasses context is ambiguous. [...] If this callable is intended to produce Core level INSERT default values for an underlying Column, use the mapped_column.insert_default parameter instead. To establish this callable as providing a default value for instances of the dataclass itself, use the default_factory dataclasses parameter.

  • We want a default value for the instances here.

• SADeprecationWarning: Callable object passed to the default parameter for attribute 'latest_modified' in a ORM-mapped Dataclasses context is ambiguous, and this use will raise an error in a future release. If this callable is intended to produce Core level INSERT default values for an underlying Column, use the mapped_column.insert_default parameter instead. To establish this callable as providing a default value for instances of the dataclass itself, use the default_factory dataclasses parameter.

  • For latest_modified it needs to be set in the database, we want to "produce Core level INSERT default values" (otherwise it runs when we create the python object). We use insert_default. (We alreay have this with the created at column.)

• passlib used crypt which was about to be deprecated in a future python version. It's also been about 6 years since last update. We also don't use it??? It's not required-by any package according to pip and not imported.

  • So I removed it.

• Fakeredis had some warnings which an update fixed.