Roll vulkan-deps from 7df3f6282518 to 6d4e78fa7f02 (2 revisions)

https://chromium.googlesource.com/vulkan-deps.git/+log/7df3f6282518..6d4e78fa7f02

Changed dependencies:
* vulkan-headers: 6eb8fc3598..2c45218b90
* vulkan-validation-layers: c5705bdcef..7fd238fff6

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 lokokung@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: lokokung@google.com
Change-Id: I20075ab93bd19a55149f699e60a53ac446513ae2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/83200
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -138,7 +138,7 @@ deps = {
   },
 
   'third_party/vulkan-deps': {
-    'url': '{chromium_git}/vulkan-deps@7df3f62825184acb8d22b714140466bcf4916825',
+    'url': '{chromium_git}/vulkan-deps@6d4e78fa7f024b6f63fe622f7dd99ac7c7429b0a',
     'condition': 'dawn_standalone',
   },