Roll vulkan-deps from d52b983a8d10 to 21f8ab710059 (1 revision)

https://chromium.googlesource.com/vulkan-deps.git/+log/d52b983a8d10..21f8ab710059

Changed dependencies:
* vulkan-validation-layers: 30cce9e1cf..ad0b11a500

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 cwallez@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: cwallez@google.com
Change-Id: Ica29a2f75c27bfa4734e8d984929ceefe9319a1f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/117160
Bot-Commit: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Dawn Autoroller <dawn-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -142,7 +142,7 @@ deps = {
   },
 
   'third_party/vulkan-deps': {
-    'url': '{chromium_git}/vulkan-deps@d52b983a8d1023512b507f5712352fc782e71c38',
+    'url': '{chromium_git}/vulkan-deps@21f8ab71005944bdac237738bf8dc8a177686d74',
     'condition': 'dawn_standalone',
   },