Roll SPIRV-Tools from 73d28b5f3735 to ed173ab1848b (2 revisions)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/73d28b5f3735..ed173ab1848b

2025-07-25 stevenperron@google.com [GH Actions] Trigger when the `kokoro:run` label is removed (#6230)
2025-07-25 alanbaker@google.com Extra restrictions for accesses of block arrays (#6226)

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: I74e03bb9e8be36516554d0044a188accb582e2cd
Reviewed-on: https://chromium-review.googlesource.com/c/vulkan-deps/+/6788445
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>

• DEPS[diff]
• spirv-tools/src[diff]