[stable-4]: fix(ci): pin ansible-core below 2.19 in ansible-lint tox env

[oraNod]

Fixes CI in #281 and #279

This change pins the ansible-core version becasue 2.19 removed ansible.parsing.yaml.constructor which ansible-lint imports directly, resulting in ModuleNotFoundError.

Verified the fix locally as well as by pushing this commit to #281

[openshift-ci]

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[openshift-ci]

Hi @oraNod. Thanks for your PR.

I'm waiting for a openshift 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.

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[openshift-ci]

@oraNod: 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/integration	a2db4ec	link	true	/test integration

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