Roll vulkan-deps from 305e3679c53c to 20ba3b385ae8 (8 revisions)

https://chromium.googlesource.com/vulkan-deps.git/+log/305e3679c53c..20ba3b385ae8

Changed dependencies:
* spirv-headers: 1feaf4414e..a41cf67dfa
* spirv-tools: 5aab2a8fef..5f4e694e10
* vulkan-loader: 889e6b7223..23c3a6047f
* vulkan-tools: f196c8d3ca..728c1535de
* vulkan-validation-layers: 8b4a4eb257..4e721b511f

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 jrprice@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: jrprice@google.com
Change-Id: I28108582fbce055657a02d2c802161f7efe6ef7c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/125200
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@305e3679c53cd27cbc653b8de58f81586f7f96a8',
+    'url': '{chromium_git}/vulkan-deps@20ba3b385ae8479f255b8df07a5037ac63818df7',
     'condition': 'dawn_standalone',
   },