Roll vulkan-deps from 20ef3c4c476b to 470172656108 (3 revisions)

https://chromium.googlesource.com/vulkan-deps.git/+log/20ef3c4c476b..470172656108

Changed dependencies:
* glslang: bffcf209cb..b2d2c9dd3d
* vulkan-loader: 1f92bbb656..865626abba
* vulkan-validation-layers: da369877f9..6ba32ffc01

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 bajones@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://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: bajones@google.com
Change-Id: I37111b63165d7224215ae0e218db994e821dc387
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94531
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -139,7 +139,7 @@ deps = {
   },
 
   'third_party/vulkan-deps': {
-    'url': '{chromium_git}/vulkan-deps@20ef3c4c476b54979cb71f9d067acb3835749998',
+    'url': '{chromium_git}/vulkan-deps@470172656108e872b556d94eba567417c466e705',
     'condition': 'dawn_standalone',
   },