[Ubuntu2404] Fix tests of rule grub2_password

[alanmcanonical]

Description:

• Call set_grub_uefi_root to override the grub path in tests

Rationale:

• The grub2_boot_path defined by Ubuntu is /boot/grub, we need to override the default one in tests

[openshift-ci]

Hi @alanmcanonical. Thanks for your PR.

I'm waiting for a ComplianceAsCode member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[alanmcanonical]

@dodys Please have a look.

[codeclimate]

Code Climate has analyzed commit 5b7e80d and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 61.9% (0.0% change).

View more on Code Climate.