Add python-multipart dependency

Includes python-multipart to support multipart form data parsing,
enabling better compatibility with APIs or features that require
processing file uploads or multipart requests.

requirements.txt

@@ -4,4 +4,5 @@ keras
 tensorflow==2.19.0
 numpy
 Pillow
-huggingface_hub
+huggingface_hub
+python-multipart