use pipefail in a step with a pipe

[benknoble]

Summary of Changes

This is supposed to be the default according to
https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_id_stepsshell
but actions/runner#353 indicates that this is
still not really the case (but the end result is confusing), so we'll
be explicit here.

This might solve #56

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[countvajhula]

Yeah, those docs do say that bash is "The default shell on non-Windows platforms with a fallback to sh", and that bash --noprofile --norc -eo pipefail {0} is the command run internally for this shell.

The last comment on actions/runner#353 also suggests that "hosted runners" should run bash as expected, and I assume the runners for the Qi repo are hosted rather than self-hosted. So, it certainly sounds like it should be the default behavior but isn't.

This looks good to me, and thanks!