Rename bump-torch-mlir-submodule branch to integrates/torch-mlir. (#17337)

This new branch name is in line with the policy being proposed at
https://github.com/iree-org/iree/pull/17335

skip-ci: this doesn't affect CI

.github/workflows/bump_torch_mlir.yml

diff --git a/.github/workflows/bump_torch_mlir.yml b/.github/workflows/bump_torch_mlir.yml
index dd39c36..77eb640 100644
--- a/.github/workflows/bump_torch_mlir.yml
+++ b/.github/workflows/bump_torch_mlir.yml
@@ -65,7 +65,7 @@
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           base: main
-          branch: bump-torch-mlir-submodule
+          branch: integrates/torch-mlir
           delete-branch: true # automatically supercedes the previous bump
           title: 'Bump torch-mlir submodule to ${{ steps.bump_submodule.outputs.TORCH_MLIR_COMMIT }}'
           body: |