fix: add more event filter across controllers

[ronething]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches
• Documentation
• Refactor
• Chore
• CI/CD or Tests

What this PR does / why we need it:

In ApisixRouteController, it is necessary to watch the ingressClass to modify the changes in annotaions.

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[Copilot]

Pull Request Overview

This PR extends event filtering in various controllers to trigger reconciliations on both annotation changes and Secret updates.

• Adds predicate.AnnotationChangedPredicate{} to several controllers
• Introduces a Secret-type filter predicate.NewPredicateFuncs(...) across controllers
• Imports the predicate package in the gatewayproxy controller

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
internal/controller/ingressclass_controller.go	Added annotation-change filter
internal/controller/ingress_controller.go	Added Secret update filter
internal/controller/gatewayproxy_controller.go	Imported predicate package and added Secret filter
internal/controller/apisixtls_controller.go	Added Secret update filter
internal/controller/apisixroute_controller.go	Added annotation-change filter and reformatted Watch
internal/controller/apisixconsumer_controller.go	Added Secret update filter

Comments suppressed due to low confidence (1)

internal/controller/ingress_controller.go:78

• New event filtering logic for Secret updates has been introduced here; consider adding or updating unit/integration tests to ensure that Secret create/update/delete events correctly trigger reconciliation.

				predicate.NewPredicateFuncs(func(obj client.Object) bool {