Roll vulkan-deps from ee3fdd677313 to 6e684d7dcc8c (15 revisions)

https://chromium.googlesource.com/vulkan-deps.git/+log/ee3fdd677313..6e684d7dcc8c

Changed dependencies:
* glslang: https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang.git/+log/8c3dbb3596..b1f7affe94
* spirv-tools: https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/ab59dc6087..7657cb1c69
* vulkan-loader: https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Loader.git/+log/1f18caf312..e0d594e05b
* vulkan-validation-layers: https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-ValidationLayers.git/+log/63064cbefb..45fdc05815

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

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://issues.skia.org/issues/new?component=1389291&template=1850622

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

Bug: None
Tbr: rharrison@google.com
Change-Id: I6dc99485a70fd101b7760ce4ae812468f3199944
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/173843
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
diff --git a/DEPS b/DEPS
index 2d72456..2227c5c 100644
--- a/DEPS
+++ b/DEPS
@@ -182,7 +182,7 @@
   },
 
   'third_party/vulkan-deps': {
-    'url': '{chromium_git}/vulkan-deps@ee3fdd6773133b80827f4f79683ca92b561498d9',
+    'url': '{chromium_git}/vulkan-deps@6e684d7dcc8ce73bd31a90c27974707ea4e902ab',
     'condition': 'dawn_standalone',
   },
 
diff --git a/third_party/vulkan-deps b/third_party/vulkan-deps
index ee3fdd6..6e684d7 160000
--- a/third_party/vulkan-deps
+++ b/third_party/vulkan-deps
@@ -1 +1 @@
-Subproject commit ee3fdd6773133b80827f4f79683ca92b561498d9
+Subproject commit 6e684d7dcc8ce73bd31a90c27974707ea4e902ab