Update requirements.txt

requirements.txt

@@ -1,7 +1,7 @@
-transformers==4.34.0
-pandas==2.2.2
-numpy==1.26.4
-PyPDF2==3.0.1
-scikit-learn==1.3.2
-torch==2.1.0
-gradio==5.29.0
+transformers>=4.40,<5
+pandas>=2.2,<3
+numpy>=1.26,<3
+PyPDF2>=3.0,<4
+scikit-learn>=1.4,<2
+gradio>=5.0,<6
+torch>=2.2,<3