Fix failing builds not throwing

[cailafinn]

To Gatekeeper: This PR should be squashed when it is merged.

Description of work

Summary of work

Fixes an issue with the builds being output to logs where a failing build would not stop the build from running.

Purpose of work

To fix an issue that resulted from:

• Output Build Logs to a File for the Jenkins Warnings Plugin #38153
  That causes CI runs that throw build errors to continue into the testing phase and not error out.

There is no associated issue.

Further detail of work

The changes make use of a set -o pipefail command to make any failures in the pipe steam to cause the whole output to fail. This is reset to the default behaviour after the build is done.

To test:

1. Check that the commit containing a build error fails on the build servers.
2. Check that the output from the build script is still entered into the log file.

This does not require release notes because there are no user-facing changes

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Reviewer

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Functional Tests

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[thomashampson]

This does fix the problem. Gatekeeper, please remember to squash the commit and make sure the commit message is good.