Roll DirectX Shader Compiler from 5d796bf3f777 to 9021cae50ba9 (3 revisions)

https://chromium.googlesource.com/external/github.com/microsoft/DirectXShaderCompiler.git/+log/5d796bf3f777..9021cae50ba9

2023-07-19 stevenperron@google.com Expand WaveActiveAllEqual with vector and matrix arguments. (#5428)
2023-07-19 hanbyang@microsoft.com Fixed a crash when linker erases functions that still have users. (#5437)
2023-07-19 python3kgae@outlook.com [Build] cleanup build dependency (#5432)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/directx-shader-compiler-dawn
Please CC lokokung@google.com,webgpu-developers@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in DirectX Shader Compiler: https://github.com/microsoft/DirectXShaderCompiler/issues/new/choose
To file a bug in Dawn: https://bugs.chromium.org/p/dawn/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Bug: None
Tbr: lokokung@google.com
Change-Id: Icc3deaee40338d64247a316bf1a4c62895751559
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/142242
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 3e16151..09362ad 100644
--- a/DEPS
+++ b/DEPS
@@ -173,7 +173,7 @@
   },
 
   'third_party/dxc': {
-    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@5d796bf3f777ef263863de390fbb6fcc22041c80',
+    'url': '{chromium_git}/external/github.com/microsoft/DirectXShaderCompiler@9021cae50ba9d216ea216a9f749e220c1c439010',
   },
   'third_party/dxheaders': {
     # The non-Windows build of DXC depends on DirectX-Headers, and at a specific commit (not ToT)