Task: Fix Keras predict classes Deprecation Issue

Task: Fix Keras predict classes Deprecation Issue: a task in Terminal-Lego-15k (Harbor dataset). In newer versions of TensorFlow/Keras, the predict classes method has been removed from the Sequential model. Code that previously worked with older versions now raises:

The task

In newer versions of TensorFlow/Keras, the `predict_classes` method has been removed from the `Sequential` model. Code that previously worked with older versions now raises:

Part of PrimeIntellect/Terminal-Lego-15k.