Add torch2.9 in regression tests

Author: jainapurva

.github/workflows/regression_test.yml

@@ -77,6 +77,12 @@ jobs:
             gpu-arch-type: "cuda"
             gpu-arch-version: "12.6"
             dev-requirements-overrides: ""
+          - name: CUDA 2.9
+            runs-on: linux.g5.12xlarge.nvidia.gpu
+            torch-spec: 'torch==2.9.0'
+            gpu-arch-type: "cuda"
+            gpu-arch-version: "12.6"
+            dev-requirements-overrides: ""
 
           - name: CPU 2.6
             runs-on: linux.4xlarge
@@ -96,6 +102,12 @@ jobs:
             gpu-arch-type: "cpu"
             gpu-arch-version: ""
             dev-requirements-overrides: ""
+          - name: CPU 2.9
+            runs-on: linux.4xlarge
+            torch-spec: 'torch==2.9.0 --index-url https://download.pytorch.org/whl/cpu'
+            gpu-arch-type: "cpu"
+            gpu-arch-version: ""
+            dev-requirements-overrides: ""
 
     uses: pytorch/test-infra/.github/workflows/linux_job_v2.yml@main
     with: