feat(conformance): tests for inferencepool_resolvedrefs_condition

[SinaChavoshi]

Adds a new conformance test (InferencePoolResolvedRefsCondition) to validate that an InferencePool correctly updates its status.parents[] when it is referenced and unreferenced by multiple gateways and HTTPRoutes.

The test ensures:

• The InferencePool shows an Accepted condition from parent Gateways when referenced.
• The parent statuses are cleared when references are removed.

go test -v ./conformance -args -debug     -gateway-class istio     -cleanup-base-resources=false -run-test InferencePoolResolvedRefsCondition
=== RUN   TestConformance
    conformance.go:196: Registering API types with scheme...
    conformance.go:196: Attempting to install inferencev1alpha2 types into scheme from package: inference.networking.x-k8s.io
    conformance.go:196: Populating SupportedFeatures with GatewayLayerProfile.CoreFeatures: [Gateway]
    conformance.go:196: Final opts.SupportedFeatures: [Gateway]
    conformance.go:196: Running Inference Extension conformance tests with GatewayClass istio
    conformance.go:196: RunConformanceWithOptions: BaseManifests path being used by opts: "resources/manifests/manifests.yaml"
    suite.go:348: 2025-05-20T23:30:35.213558999Z: Test Setup: Ensuring GatewayClass has been accepted
...
--- PASS: TestConformance (215.13s)
    --- SKIP: TestConformance/InferencePoolAccepted (0.00s)
    --- PASS: TestConformance/InferencePoolResolvedRefsCondition (182.05s)
        --- PASS: TestConformance/InferencePoolResolvedRefsCondition/InferencePool_should_show_Accepted:True_by_parents_when_referenced_by_multiple_HTTPRoutes (0.05s)
        --- PASS: TestConformance/InferencePoolResolvedRefsCondition/Delete_httproute-for-gw1 (180.11s)
        --- PASS: TestConformance/InferencePoolResolvedRefsCondition/InferencePool_should_still_show_Accepted:True_by_parent_after_one_HTTPRoute_is_deleted (0.21s)
        --- PASS: TestConformance/InferencePoolResolvedRefsCondition/Delete_httproute-for-gw2 (0.09s)
        --- PASS: TestConformance/InferencePoolResolvedRefsCondition/InferencePool_should_have_no_parent_statuses_after_all_HTTPRoutes_are_deleted (0.04s)
PASS
ok  

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[k8s-ci-robot]

Hi @SinaChavoshi. Thanks for your PR.

I'm waiting for a kubernetes-sigs 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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[robscott]

Thanks @SinaChavoshi, this is great!

[robscott]

Thanks @SinaChavoshi!

/lgtm
/ok-to-test

Assigning a maintainer for approval:
/assign @kfswain @danehans

[ahg-g]

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahg-g, SinaChavoshi

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