transformers

a26d71d6 - Export TensorFlow models to ONNX with dynamic input shapes (#19255)

Export TensorFlow models to ONNX with dynamic input shapes (#19255) * validate onnx models with a different input geometry than saved with * only test working features for now * simpler test skipping * rm TODO * expose batch_size/seq_length on vit * skip certain name, feature, framework parameterizations known to fail validation * Trigger CI * Trigger CI