Upgrade transformers and torch for CodeT5+ support

requirements.txt

@@ -1,6 +1,5 @@
-transformers==4.21.3
-torch==1.13.1
+transformers>=4.40.0
+torch>=2.0.0
 sentencepiece>=0.1.96
-tokenizers>=0.12.1,<0.14
-accelerate>=0.12.0,<0.21
-datasets>=2.0.0
+accelerate>=0.20.0
+datasets>=2.0.0