Maintenance: improve error feedback when tasks fail in CI

[yannbf]

Issue: N/A

What I did

Changed the output of JUnit.XML files when there is an arbitrary code error (not a failure coming from a test)

From:

<testsuites tests="1" errors="1" failures="0" skipped="0" name="e2e-tests - react-vite/default-js" time="0.001">
  <testsuite tests="1" errors="1" failures="0" skipped="0" name="e2e-tests - react-vite/default-js" time="0.001" timestamp="2022-11-09T08:48:00.915Z">
    <testcase name="e2e-tests - react-vite/default-js" classname="react-vite/default-js e2e-tests - react-vite/default-js" time="0.001" assertions="1">
      <error>iDoNotExist is not defined</error>
    </testcase>
  </testsuite>
</testsuites>

To:

<testsuites tests="1" errors="0" failures="0" skipped="0" name="e2e-tests - react-vite/default-js" time="0.001">
    <testsuite tests="1" errors="0" failures="0" skipped="0" name="e2e-tests - react-vite/default-js" time="0.001" timestamp="2022-11-09T08:17:43.019Z">
        <testcase name="e2e-tests - react-vite/default-js" classname="react-vite/default-js react-vite/default-js react-vite/default-js e2e-tests - react-vite/default-js" time="0.001" assertions="1">
            <error>
                ReferenceError: iDoNotExist is not defined
                    at Object.run (/Users/yannbraga/open-source/storybook/scripts/tasks/e2e-tests.ts:13:17)
                    at runTask (/Users/yannbraga/open-source/storybook/scripts/task.ts:277:35)
                    at run (/Users/yannbraga/open-source/storybook/scripts/task.ts:411:34)
                    at processTicksAndRejections (node:internal/process/task_queues:96:5)
            </error>
        </testcase>
    </testsuite>
</testsuites>

How to test

• Is this testable with Jest or Chromatic screenshots?
• Does this need a new example in the kitchen sink apps?
• Does this need an update to the documentation?

If your answer is yes to any of these, please make sure to include it in your PR.

[tmeasday]

OK!, seems like an improvement