fix compatibility with latest 'stable' flutter build + bump min sdk to 3.3.0

[ptgms]

The latest Flutter Version broke this package (see #232). This PR restores functionality with the downside of bumping the minimum dart sdk to 3.3.0.

If that is too harsh and there is a better solution, feel free to decline, I won't mind :)

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[PaulTR]

Let me check to see how many devs are using 3.3.0 or later, but if it's a decent number then this seems reasonable.

[PaulTR]

Also looks like this just needs a quick format check

[PaulTR]

Alright if you can just run the format command (I want to say it was dart format --output=none --set-exit-if-changed .) this should be good to go - upping the version seems like a good plan on my side.

[ptgms]

done :)

[PaulTR]

This one might take a minute to get into the full package. Fighting ffigen and building with error messages around error - lib/src/bindings/tensorflow_lite_bindings_generated.dart:2060:7 - The type 'TfLiteModel' must be 'base', 'final' or 'sealed' because the supertype 'Opaque' is 'base'. - subtype_of_base_or_final_is_not_base_final_or_sealed - figuring out what needs to be changed to pass that via flutter pub run ffigen --config ffigen_tensorflow_lite.yaml

[andresgd7]

dude i love u

[ptgms]

@PaulTR ill try and take a look if i can figure something out :)
lets get this fixed so our developer friends can start using this package again :)

[SametSahin10]

Will there be a new version that makes this fix available to everyone?