Improve runtimeError

[connorjclark]

#15824 produces these errors in the LHR:

"runtimeError": {
  "code": "PROTOC OL_TIMEOUT",
  "message": "Waiting for DevTools protocol response has exceeded the allotted time. (Method: Runtime.evaluate)"
},
...
"accesskeys": {
  "id": "accesskeys",
  "title": "`[accesskey]` values are unique",
  "description": "Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. [Learn more about access keys](https://dequeuniversity.com/rules/axe/4.8/accesskeys).",
  "score": null,
  "scoreDisplayMode": "error",
  "errorMessage": "Required Accessibility gatherer encountered an error: PROTO COL_TIMEOUT",
  "errorStack": "LighthouseError: PROTO COL_TIMEOUT\n    at file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/session.js:102:47\n    at new Promise (<anonymous>)\n    at ProtocolSession.sendCommand (file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/session.js:100:28)\n    at ExecutionContext._evaluateInContext (file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/driver/execution-context.js:128:42)\n    at ExecutionContext.evaluateAsync (file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/driver/execution-context.js:173:25)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/runner-helpers.js:106:24\n    at async collectPhaseArtifacts (file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/runner-helpers.js:123:5)\n    at async _computeNavigationResult (file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/navigation-runner.js:186:5)\n    at async file:///usr/local/google/home/cjamcl/code/lighthouse/core/gather/navigation-runner.js:310:25"
},

1. runtimeError should have a stack trace
2. I want to know which gatherer or whatever failed from runtimeError
3. Can we possibly get async stack traces? the stack in the audit error is missing the line that actually issued the Runtime.evaluate

[connorjclark]

@paulirish can you kill this bot