[executorch hash update] update the pinned executorch hash (#152238)

This PR is auto-generated nightly by [this action](https://github.com/pytorch/pytorch/blob/main/.github/workflows/nightly.yml).
Update the pinned executorch hash.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/152238
Approved by: https://github.com/pytorchbot, https://github.com/huydhn

Co-authored-by: Huy Do <huydhn@gmail.com>

.ci/docker/ci_commit_pins/executorch.txt

@@ -1 +1 @@
-a325c56864c5b25630c1ebda03c8f16a96a02a19
+b173722085b3f555d6ba4533d6bbaddfd7c71144

.ci/docker/common/install_executorch.sh

@@ -13,7 +13,7 @@ clone_executorch() {
   # and fetch the target commit
   pushd executorch
   git checkout "${EXECUTORCH_PINNED_COMMIT}"
-  git submodule update --init
+  git submodule update --init --recursive
   popd
 
   chown -R jenkins executorch

.ci/pytorch/test.sh

@@ -1486,8 +1486,6 @@ test_executorch() {
   export PYTHON_EXECUTABLE=python
   export CMAKE_ARGS="-DEXECUTORCH_BUILD_PYBIND=ON -DEXECUTORCH_BUILD_XNNPACK=ON -DEXECUTORCH_BUILD_KERNELS_QUANTIZED=ON"
 
-  # For llama3
-  bash examples/models/llama3_2_vision/install_requirements.sh
   # NB: We need to rebuild ExecuTorch runner here because it depends on PyTorch
   # from the PR
   bash .ci/scripts/setup-linux.sh --build-tool cmake