WIP Fix Galera bootstrap with tightened TCIB sudoers

[rabi]

Stop using sudo -E for kolla_set_configs in mysql_bootstrap.sh. The TCIB image now relies on explicit env_keep, so preserving the full environment is no longer allowed and breaks MariaDB bootstrap.

[openshift-ci]

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[openshift-ci]

@rabi: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/mariadb-operator-build-deploy-chainsaw	f916362	link	true	/test mariadb-operator-build-deploy-chainsaw

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