Roll WebGPU CTS from 125990efef04 to 6e29c73079d2 (1 revision)

https://chromium.googlesource.com/external/github.com/gpuweb/cts.git/+log/125990efef04..6e29c73079d2

2024-05-22 github@greggman.com WGSL builtin textureSample w/derivatives test (#3757)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/webgpu-cts-chromium-autoroll
Please CC bajones@google.com,webgpu-developers@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://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

Cq-Include-Trybots: luci.chromium.try:dawn-android-arm-deps-rel;luci.chromium.try:dawn-android-arm64-deps-rel;luci.chromium.try:dawn-linux-x64-deps-rel;luci.chromium.try:dawn-mac-x64-deps-rel;luci.chromium.try:dawn-mac-arm64-deps-rel;luci.chromium.try:dawn-win10-x64-deps-rel;luci.chromium.try:dawn-win10-x86-deps-rel;luci.chromium.try:dawn-win11-arm64-deps-rel
Bug: None
Tbr: bajones@google.com
Change-Id: Ie8d1e02eb0d324d570f7bee95bf80d8a6e657d4f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5556114
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1304293}