Synchronize submodules with LLVM at llvm/llvm-project@b2780cd744ea

Updates LLVM dependencies to match
[b2780cd744ea](https://github.com/llvm/llvm-project/commit/b2780cd744ea).
- llvm-bazel to
  [fd737ecd988c](https://github.com/google/llvm-bazel/commit/fd737ecd988c)
- TensorFlow to
[2d10d3aba9fc](https://github.com/tensorflow/tensorflow/commit/2d10d3aba9fc)
- MLIR-HLO to
[3354640c3a88](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: 371362099