Skip bad compat test on Pixel 6

Skips a WebGPU compat CTS test on Pixel 6 devices since it is flakily
killing devices mid-test.

Bug: 465497437
Change-Id: I74d1d5778b3d6605200415f0cb720142b94a2cee
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/278044
Commit-Queue: Brian Sheedy <bsheedy@google.com>
Auto-Submit: Brian Sheedy <bsheedy@google.com>
Commit-Queue: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>

webgpu-cts/compat-expectations.txt

diff --git a/webgpu-cts/compat-expectations.txt b/webgpu-cts/compat-expectations.txt
index 9fbe75e..a366690 100644
--- a/webgpu-cts/compat-expectations.txt
+++ b/webgpu-cts/compat-expectations.txt
@@ -327,6 +327,9 @@
 # Driver crash with multisample texture load on pixel-6
 crbug.com/373670502 [ android-pixel-6 ] webgpu:shader,execution,expression,call,builtin,textureLoad:multisampled:* [ Skip ]
 
+# Flakily kills the test device.
+crbug.com/465497437 [ android android-pixel-6 ] webgpu:api,validation,capability_checks,limits,maxBufferSize:createBuffer,at_over:limitTest="atMaximum";testValueName="atLimit" [ Skip ]
+
 ################################################################################
 # Triaged or Manually-Added Flakes and Failures
 ################################################################################