Pin gradio to 5.9.1 + gradio-client to 1.5.4 to fix /api/info crash

requirements.txt

@@ -1,6 +1,7 @@
-gradio>=5.0.0
+gradio==5.9.1
+gradio-client==1.5.4
 torch>=2.0.0
 torchvision>=0.15.0
 open_clip_torch>=2.20.0
 pillow>=10.0.0
-huggingface_hub>=0.24.0
+numpy>=1.24.0