Roll vulkan-deps from 648e3cd04619 to 6885957e17e7 (3 revisions)

https://chromium.googlesource.com/vulkan-deps.git/+log/648e3cd04619..6885957e17e7

Changed dependencies:
* vulkan-loader: https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Loader.git/+log/2d15653773..fc48c8640b
* vulkan-validation-layers: https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-ValidationLayers.git/+log/ac73fbe123..50412534b7

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-chromium-autoroll
Please CC bclayton@google.com,geofflang@google.com,radial-bots+chrome-roll@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/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

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:linux-swangle-try-x64;luci.chromium.try:win-swangle-try-x86;luci.chromium.try:dawn-linux-x64-deps-rel;luci.chromium.try:win-asan;luci.chromium.try:linux_chromium_cfi_rel_ng
Bug: None
Tbr: bclayton@google.com,geofflang@google.com,radial-bots+chrome-roll@google.com
Change-Id: I7da740ed79b064017ccbf0b848b7b3c0ba900d75
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3669132
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1007717}