operator/ingress: Add httpLogFormat validation

[Miciah]

Add a kubebuilder validation pattern and integration tests for the IngressController.spec.logging.access.httpLogFormat API field.

[openshift-ci-robot]

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For optional jobs, comment /test ? to see a list of all defined jobs. To trigger manually all jobs from second stage use /pipeline required command.

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[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[openshift-ci]

Hello @Miciah! Some important instructions when contributing to openshift/api:
API design plays an important part in the user experience of OpenShift and as such API PRs are subject to a high level of scrutiny to ensure they follow our best practices. If you haven't already done so, please review the OpenShift API Conventions and ensure that your proposed changes are compliant. Following these conventions will help expedite the api review process for your PR.

[coderabbitai]

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[Miciah]

/test integration
/test lint
/test unit
/test verify

[qodo-code-review]

PR-Agent: could not fine a component named integration in a supported language in this PR.

[Miciah]

/test integration

[qodo-code-review]

PR-Agent: could not fine a component named integration in a supported language in this PR.

[Miciah]

/test integration
/test verify

[qodo-code-review]

PR-Agent: could not fine a component named integration in a supported language in this PR.

[openshift-ci]

@Miciah: 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	92a3c14	link	true	/test integration

Full PR test history. Your PR dashboard.

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