Starting with flutter/engine#47678, all post submit CI runs for Linux host_debug_impeller_vulkan are failing.

Runs fail consistently somewhere between 8.5m to 10m during seemingly random Vulkan playgrounds. gtest always exits with -6. No additional output indicating a problem.

Sample:
https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8765060191207742689/+/u/test:_Host_Tests_for_host_debug_impeller_vulkan/stdout
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20Production%20Engine%20Drone/455462/overview