Roll vulkan-deps from 85612ac7910e to 81af4024f34b (6 revisions)

https://chromium.googlesource.com/vulkan-deps.git/+log/85612ac7910e..81af4024f34b

Changed dependencies:
* spirv-cross: d16183d1d2..6c7a40822f
* spirv-tools: d18d0d92e5..f56726a323
* vulkan-validation-layers: 2f61d0d86c..a06135e65b

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 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: I0abd142bb6e0581581f2ea282659a66f4652f80c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/82640
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@85612ac7910e1ce34ef9d680ae7083707bfd74fe',
+    'url': '{chromium_git}/vulkan-deps@81af4024f34bebd20619f2c3b3dd0b57182e2e11',
     'condition': 'dawn_standalone',
   },