upgrade torch to 2.7 (#1277)

Signed-off-by: jiqing-feng <[email protected]>

Author: jiqing-feng

.github/workflows/test_ipex.yml

@@ -22,7 +22,7 @@ jobs:
       fail-fast: false
       matrix:
         transformers-version: ["4.51.3"]
-        torch-version: ["2.6.0"]
+        torch-version: ["2.7.0"]
         test-file: [test_modeling.py, test_pipelines.py, test_modeling_causal_lm.py]
 
     runs-on: ubuntu-22.04