Update requirements.txt

requirements.txt

@@ -1,6 +1,7 @@
+# requirements.txt
 gradio>=3.20,<4.0
 transformers>=4.30,<5.0
-torch>=1.12,<2.0
+torch>=2.1,<2.2   # <-- force a 2.x release
 Pillow
 requests
 sentencepiece