RandomZoom backwards compatibility

[SimonF24]

Working on converting the "Image classification with Vision Transformer" keras.io example to keras 3 and ran into a backwards compatibility issue with RandomZoom(). Logging here as per #18468. Changing the imports to keras_core results in an exception when calling RandomZoom.call() where image_width is a Tensor in line 230 of keras_core/src/layers/preprocessing/random_zoom.py.

Colab

[fchollet]

Thanks for the report! The issue is now fixed at HEAD.