Synchronize submodules with LLVM at llvm/llvm-project@3383ec5fdd04

Updates LLVM dependencies to match
[3383ec5fdd04](https://github.com/llvm/llvm-project/commit/3383ec5fdd04).
- TensorFlow to
[ac4acf61a68b](https://github.com/tensorflow/tensorflow/commit/ac4acf61a68b)
- MLIR-HLO to
[21edc2e26a73](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: 393820921

SUBMODULE_VERSIONS.txt

diff --git a/SUBMODULE_VERSIONS.txt b/SUBMODULE_VERSIONS.txt
index 4667604..8af113a 100644
--- a/SUBMODULE_VERSIONS.txt
+++ b/SUBMODULE_VERSIONS.txt
@@ -5,13 +5,13 @@
 88b845dee001723c4a0db1fe5477de735b6d3bb0 third_party/liburing
 acd6f6f014c25e46363e718381e0b35205df2d83 third_party/libyaml
 3383ec5fdd04be095678e0bd8bd1ce341f4f9294 third_party/llvm-project
-57d1302f87c431405b20a74c18be12824e1df220 third_party/mlir-hlo
+21edc2e26a736871748c4ddd8acfb6bfb0da9041 third_party/mlir-hlo
 3f701faace7addc75d16dea8a6cd769fa5b3f260 third_party/musl
 4c7697dbe973ed01ae6fbec37d186ebd05982e1f third_party/pybind11
 2e1b5fb39ebc2ef4cb77005f8267e4f3a6241ba1 third_party/spirv_cross
 f5417a4b6633c3217c9a1bc2f0c70b1454975ba7 third_party/spirv_headers
 b42009b3b9d4ca35bc703f5310eedc74f584be58 third_party/stblib
-61bcb9df099b3be7dfbbbba051ca007032bfb777 third_party/tensorflow
+ac4acf61a68b1f43e397725601646d298fa3dd36 third_party/tensorflow
 50f7deb1a389bd3785c12fbe0be74128343f11f7 third_party/tracy
 9d10a96f2d57c3c37e167f2e73c9a31ac2e51fa5 third_party/vulkan_headers
 8d4a9e9174a9c6ad6a3a3ae981b915ef13fc12c4 third_party/vulkan_memory_allocator

third_party/mlir-hlo

diff --git a/third_party/mlir-hlo b/third_party/mlir-hlo
index 57d1302..21edc2e 160000
--- a/third_party/mlir-hlo
+++ b/third_party/mlir-hlo
@@ -1 +1 @@
-Subproject commit 57d1302f87c431405b20a74c18be12824e1df220
+Subproject commit 21edc2e26a736871748c4ddd8acfb6bfb0da9041

third_party/tensorflow

diff --git a/third_party/tensorflow b/third_party/tensorflow
index 61bcb9d..ac4acf6 160000
--- a/third_party/tensorflow
+++ b/third_party/tensorflow
@@ -1 +1 @@
-Subproject commit 61bcb9df099b3be7dfbbbba051ca007032bfb777
+Subproject commit ac4acf61a68b1f43e397725601646d298fa3dd36