Update args description of crop_to_bounding_box & pad_to_bounding_box
Currently the documentation of the API `tf.image.crop_to_bounding_box` doesn't mentioning the acceptable dtypes of the arguments `offset_height, offset_width, target_height, target_width`. This API accepts only` tf.int32 Tensor` or a `integer`. For other dtypes its raising exception. Hence adding details of acceptable dtypes for these arguments for better clarity to the users.

Refer attached gist for [crop_to_bounding_box](https://colab.sandbox.google.com/gist/SuryanarayanaY/57ceb39be4649987d0cf3c9a3eb584f4/tf-image-crop_to_bounding_box.ipynb#scrollTo=xvm-YCU4X2Z0).

Also Fixes #61644 .

Similarly `tf.image.pad_to_bounding_box` documentation also have the same arguments `offset_height, offset_width, target_height, target_width`. But these arguments accept `int32` and `int64`Tensors but not others.Hence added details of acceptable dtypes for these arguments for better clarity to the users.

Refer attached gist for [pad_to_bounding_box](https://colab.sandbox.google.com/gist/SuryanarayanaY/c4bbec3161c740a73472c0361ba0959b/tf-image-pad_to_bounding_box.ipynb).
