compute: should return a helpful message on request response.statusCode 403 failed

[flaky-bot]

Note: #1572 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

---

commit: d8e5eb9
buildURL: Build Status, Sponge
status: failed

Test output

The input did not match the regular expression /A Forbidden error was returned while attempting to retrieve an access token for the Compute Engine built-in service account. This may be because the Compute Engine instance does not have the correct permission scopes specified. Could not refresh access token./. Input:
'FetchError: request to http://169.254.169.254/computeMetadata/v1/instance/service-accounts/default/token failed, reason: Nock: No match for request {\n' +

'  "method": "GET",\n' +

'  "url": "http://169.254.169.254/computeMetadata/v1/instance/service-accounts/default/token",\n' +

'  "headers": {\n' +

'    "metadata-flavor": [\n' +

'      "Google"\n' +

'    ],\n' +

'    "accept": [\n' +

'      "/"\n' +

'    ],\n' +

'    "user-agent": [\n' +

'      "node-fetch/1.0 (+https://github.com/bitinn/node-fetch)"\n' +

'    ],\n' +

'    "accept-encoding": [\n' +

'      "gzip,deflate"\n' +

'    ],\n' +

'    "connection": [\n' +

'      "close"\n' +

'    ]\n' +

'  }\n' +

'}'
AssertionError [ERR_ASSERTION]: The input did not match the regular expression /A Forbidden error was returned while attempting to retrieve an access token for the Compute Engine built-in service account. This may be because the Compute Engine instance does not have the correct permission scopes specified. Could not refresh access token./. Input:
'FetchError: request to http://169.254.169.254/computeMetadata/v1/instance/service-accounts/default/token failed, reason: Nock: No match for request {\n' +

'  "method": "GET",\n' +

'  "url": "http://169.254.169.254/computeMetadata/v1/instance/service-accounts/default/token",\n' +

'  "headers": {\n' +

'    "metadata-flavor": [\n' +

'      "Google"\n' +

'    ],\n' +

'    "accept": [\n' +

'      "/"\n' +

'    ],\n' +

'    "user-agent": [\n' +

'      "node-fetch/1.0 (+https://github.com/bitinn/node-fetch)"\n' +

'    ],\n' +

'    "accept-encoding": [\n' +

'      "gzip,deflate"\n' +

'    ],\n' +

'    "connection": [\n' +

'      "close"\n' +

'    ]\n' +

'  }\n' +

'}'
at processTicksAndRejections (internal/process/task_queues.js:95:5)
at Context.<anonymous> (test/test.compute.ts:158:5)</pre></details>

[flaky-bot]

Test passed for commit 90ea4de (Build Status, Sponge)! Closing this issue.