Update train_text_to_image_sdxl.py (#8830)

Enable VAE hash to be able to change with args change. If not, train_dataset_with_embeddiings may have row number inconsistency with train_dataset_with_vae.
Co-authored-by: Linoy Tsaban <57615435+linoytsaban@users.noreply.github.com>

examples/text_to_image/train_text_to_image_sdxl.py

@@ -919,7 +919,7 @@ def main(args):
         # fingerprint used by the cache for the other processes to load the result
         # details: https://github.com/huggingface/diffusers/pull/4038#discussion_r1266078401
         new_fingerprint = Hasher.hash(args)
-        new_fingerprint_for_vae = Hasher.hash(vae_path)
+        new_fingerprint_for_vae = Hasher.hash((vae_path, args))
         train_dataset_with_embeddings = train_dataset.map(
             compute_embeddings_fn, batched=True, new_fingerprint=new_fingerprint
         )