[serve] add cors warnings (#40112)
* add cors warnings
* Update src/transformers/commands/serving.py
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
* Update src/transformers/commands/serving.py
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
* Apply suggestions from code review
* make fixup
---------
Co-authored-by: Quentin Gallouédec <45557362+qgallouedec@users.noreply.github.com>
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
