Roll vulkan-deps from ffabe3106e73 to 6269f2d7cf86 (3 revisions)

https://chromium.googlesource.com/vulkan-deps.git/+log/ffabe3106e73..6269f2d7cf86

Changed dependencies:
* vulkan-validation-layers: 90288cbe76..20e85d7f2b

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 bclayton@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://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: bclayton@google.com
Change-Id: I8cbd4b6a2b834734945d39955f8cc7d38ce98ee6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/123941
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>

DEPS

@@ -142,7 +142,7 @@ deps = {
   },
 
   'third_party/vulkan-deps': {
-    'url': '{chromium_git}/vulkan-deps@ffabe3106e731b97fdd180f95e77eebc1188cdf3',
+    'url': '{chromium_git}/vulkan-deps@6269f2d7cf86e613296bd90156c9eb6103dbcee3',
     'condition': 'dawn_standalone',
   },