Install dependency "xmllint" package

[alanmcanonical]

Description:

• Fix the "Could not find XMLLINT_EXECUTABLE" error

Rationale:

• Use apt to install the required dependency xmllint from libxml2-utils

[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.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[github-actions]

Start a new ephemeral environment with changes proposed in this pull request:

Fedora Environment

Oracle Linux 8 Environment

[github-actions]

🤖 A k8s content image for this PR is available at:
ghcr.io/complianceascode/k8scontent:12080
This image was built from commit: ae8a511

Click here to see how to deploy it

If you alread have Compliance Operator deployed:
utils/build_ds_container.py -i ghcr.io/complianceascode/k8scontent:12080

Otherwise deploy the content and operator together by checking out ComplianceAsCode/compliance-operator and:
CONTENT_IMAGE=ghcr.io/complianceascode/k8scontent:12080 make deploy-local

[codeclimate]

Code Climate has analyzed commit ae8a511 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 59.4% (0.0% change).

View more on Code Climate.

[jan-cerny]

I have seen that the libxml2-utils have successfully installed in the Ubuntu 22.04 CI job. Unfortunately, the build didn't happen because it's filtered out by CTF.

The CI fail on Fedora Rawhide is a problem in dnf and isn't caused by the contents of this PR.