Update numpy to 2.x for pickle compatibility

requirements.txt

@@ -1,8 +1,8 @@
-gradio==4.19.2
-torch==2.1.0
-transformers==4.36.0
-numpy==1.24.3
-scikit-learn==1.3.0
-plotly==5.18.0
-spaces==0.19.4
-accelerate==0.25.0
+gradio>=4.19.2
+torch>=2.1.0
+transformers>=4.36.0
+numpy>=2.0.0
+scikit-learn>=1.3.0
+plotly>=5.18.0
+spaces
+accelerate>=0.25.0