fix: fix ControlPlane status update

[pmalek]

What this PR does / why we need it:

This handles cases where the status was not yet updated (e.g., after an update to the spec that changed controllers/feature gates).

Without this change we sometimes do get failures in tests where the status is not as the spec would indicate so.

Which issue this PR fixes

Fixes #

Special notes for your reviewer:

PR Readiness Checklist:

Complete these before marking the PR as ready to review:

• the CHANGELOG.md release notes have been updated to reflect significant changes

[pmalek]

Observing errors in integration tests:

2026-01-14T10:31:49.5353144Z 2026-01-14T10:25:17Z	DEBUG	KonnectExtension	reconciling
2026-01-14T10:31:49.5353418Z 2026-01-14T10:25:17Z	DEBUG	KonnectExtension	DataPlane certificate validity checked
2026-01-14T10:31:49.5353901Z 2026-01-14T10:25:17Z	DEBUG	KonnectExtension	ControlPlane not found, for KonnectExtension during deletion, proceeding with cleanup
2026-01-14T10:31:49.5354208Z 2026-01-14T10:25:17Z	DEBUG	KonnectExtension	controlPlane reference validity checked
2026-01-14T10:31:49.5356104Z 2026-01-14T10:25:17Z	ERROR	Reconciler error	{"controller": "konnectextension", "controllerGroup": "konnect.konghq.com", "controllerKind": "KonnectExtension", "KonnectExtension": {"name":"fd57c0f1-f65c-4044-90fa-4c7f9c453000-rl8pr","namespace":"53d2abb8-d512-42ce-89c2-fd9fd64a1cd3"}, "namespace": "53d2abb8-d512-42ce-89c2-fd9fd64a1cd3", "name": "fd57c0f1-f65c-4044-90fa-4c7f9c453000-rl8pr", "reconcileID": "1a325ef5-8fd7-4197-bbcd-34377ff893e2", "error": "cannot determine KonnectAPIAuthConfiguration reference"}
2026-01-14T10:31:49.5356475Z sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).reconcileHandler
2026-01-14T10:31:49.5356865Z 	/home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.22.4/pkg/internal/controller/controller.go:474
2026-01-14T10:31:49.5357233Z sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).processNextWorkItem
2026-01-14T10:31:49.5357652Z 	/home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.22.4/pkg/internal/controller/controller.go:421
2026-01-14T10:31:49.5357931Z sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Start.func1.1
2026-01-14T10:31:49.5358329Z 	/home/runner/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.22.4/pkg/internal/controller/controller.go:296