[v1] Add Whisper model support (encoder-decoder) (#21088)

Signed-off-by: Russell Bryant <rbryant@redhat.com>
Co-authored-by: NickLucche <nlucches@redhat.com>

examples/offline_inference/encoder_decoder.py

@@ -5,6 +5,8 @@ Demonstrate prompting of text-to-text
 encoder/decoder models, specifically BART and mBART.
 
 This script is refactored to allow model selection via command-line arguments.
+
+NOTE: This example is not yet supported in V1.
 """
 
 import argparse