Override the torch pip package version when building wheels

This override will ensure that the release/0.2 branch always builds
against torch==2.3.0 instead of trying to use newer versions or
nightlies.

Author: dbort

.github/workflows/build-wheels-linux.yml

@@ -50,6 +50,9 @@ jobs:
       test-infra-repository: pytorch/test-infra
       test-infra-ref: release/2.3
       build-matrix: ${{ needs.generate-matrix.outputs.matrix }}
+      # All wheels built in the release/0.2 branch should use this version of
+      # the torch pip package.
+      pytorch-version-override: 2.3.0
       # ExecuTorch only needs the first layer of submodules; override the
       # "recursive" default to do less work, and to give the buck daemon fewer
       # files to look at.

.github/workflows/build-wheels-m1.yml

@@ -50,6 +50,9 @@ jobs:
       test-infra-repository: pytorch/test-infra
       test-infra-ref: release/2.3
       build-matrix: ${{ needs.generate-matrix.outputs.matrix }}
+      # All wheels built in the release/0.2 branch should use this version of
+      # the torch pip package.
+      pytorch-version-override: 2.3.0
       # ExecuTorch only needs the first layer of submodules; override the
       # "recursive" default to do less work, and to give the buck daemon fewer
       # files to look at.