run/idp-sql: Can not make a POST request with bad token failed

[flaky-bot]

This test failed!

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If I'm commenting on this issue too often, add the flakybot: quiet label and
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commit: 2755c14
buildURL: Build Status, Sponge
status: failed

Test output

Expected values to be strictly equal:
401 !== 403
  + expected - actual

  -401
  +403

AssertionError [ERR_ASSERTION]: Expected values to be strictly equal:
401 !== 403
at Context.<anonymous> (test/system.test.js:143:12)
at processTicksAndRejections (internal/process/task_queues.js:97:5)</pre></details>

[flaky-bot]

Looks like this issue is flaky. 😟

I'm going to leave this open and stop commenting.

A human should fix and close this.

---

When run at the same commit (2755c14), this test passed in one build (Build Status, Sponge) and failed in another build (Build Status, Sponge).

[averikitsch]

Similar to #2059, this error doesn't happen frequently. The test would error if there was no ID token, however the code is registering no ID token. Other requests are successful so the service is running and I am unable to tell from the logs if the auth header made it to the service. There may be an underlying race condition, but will investigate further if it happens again.