auth samples: should get id token from metadata server failed

[flaky-bot[bot]]

This test failed!

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commit: 0bcacaf1ff95fde06dea7e3f7d1a4b8d044a6233 buildURL: Build Status, Sponge status: failed

Test output

Command failed: node idTokenFromMetadataServer https://www.google.com
Invalid response body while trying to fetch https://www.googleapis.com/oauth2/v4/token: read ECONNRESET

Error: Command failed: node idTokenFromMetadataServer https://www.google.com
Invalid response body while trying to fetch https://www.googleapis.com/oauth2/v4/token: read ECONNRESET

    at checkExecSyncError (child_process.js:790:11)
    at Object.execSync (child_process.js:863:15)
    at execSync (test/auth.test.js:29:13)
    at Context. (test/auth.test.js:50:20)
    at processImmediate (internal/timers.js:464:21)

[flaky-bot[bot]]

Test passed for commit 992397b5ef79dd5a4a0fe1383dc44ee71f11632e (Build Status, Sponge)! Closing this issue.