Reuse the existing Hydrophone installation and preserve the single test selected by Sonobuoy Quick mode. Rename the opt-in variable to conformance_enabled and update the Elastx testcase.
* ci: run the Ansible controller as an unprivileged user
* ci: clarify non-root controller check
* ci: make the sudo privilege check fail when sudo succeeds
Bash does not apply errexit to the negated sudo command. The old check could not fail the job even when passwordless sudo worked. Exit explicitly when sudo succeeds.
Remove --break-system-packages from both upgrade pip installs because they run inside the controller virtual environment.
Frank