Synchronize submodules with LLVM at llvm/llvm-project@3064dd8ccffc

Updates LLVM dependencies to match
[3064dd8ccffc](https://github.com/llvm/llvm-project/commit/3064dd8ccffc).
- TensorFlow to
[0de7e6d50918](https://github.com/tensorflow/tensorflow/commit/0de7e6d50918)
- MLIR-HLO to
[8ff74aee67ec](https://github.com/tensorflow/mlir-hlo/commit/${MLIR_HLO_SHA?})

`./scripts/git/update_to_llvm_syncpoint.py`

Automated submodule bump from .github/workflows/update_llvm_dependent_submodules.yml

PiperOrigin-RevId: 419673635