Roll SPIRV-Tools from 4bd1536ed790 to 1a811fd69871 (2 revisions)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/4bd1536ed790..1a811fd69871

2025-04-04 sven.vanhaastregt@arm.com spirv-val: Restrict VUID 09557 to Vulkan environments (#6080)
2025-04-04 115671160+spencer-lunarg@users.noreply.github.com spirv-val: Label new VUID from 312 headers (#6079)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/spirv-tools-vulkan-deps-autoroll
Please CC angle-team@google.com,radial-bots+chrome-roll@google.com,radial-bots@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: radial-bots+chrome-roll@google.com
Change-Id: I8e65f1d765573d16ee11f0b2ca1f877e313ca95c
Reviewed-on: https://chromium-review.googlesource.com/c/vulkan-deps/+/6435148
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>

• DEPS[diff]
• spirv-tools/src[diff]