USHIFT-4536: Add Gateway API tests

[pacevedom]

Which issue(s) this PR addresses:

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[openshift-ci-robot]

@pacevedom: This pull request references USHIFT-4536 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "4.18.0" version, but no target version was set.

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Which issue(s) this PR addresses:

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: pacevedom

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[pacevedom]

/hold
Waiting on #4066
Will be rebased after that one merges, commits are only included for CI testing.

[openshift-ci]

@pacevedom: The following tests 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/ocp-full-conformance-serial-rhel-eus	938c119	link	true	/test ocp-full-conformance-serial-rhel-eus
ci/prow/ocp-full-conformance-serial-rhel-eus-arm	938c119	link	true	/test ocp-full-conformance-serial-rhel-eus-arm
ci/prow/e2e-aws-tests-arm	938c119	link	true	/test e2e-aws-tests-arm
ci/prow/ocp-full-conformance-rhel-eus-arm	938c119	link	true	/test ocp-full-conformance-rhel-eus-arm
ci/prow/e2e-aws-tests-bootc-arm	938c119	link	true	/test e2e-aws-tests-bootc-arm
ci/prow/e2e-aws-tests-bootc	938c119	link	true	/test e2e-aws-tests-bootc
ci/prow/ocp-full-conformance-rhel-eus	938c119	link	true	/test ocp-full-conformance-rhel-eus

Full PR test history. Your PR dashboard.

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