fix(kuma-cp): consistently update ZoneIngress available services (backport of #10426)

[kumahq]

Automatic cherry-pick of #10426 for branch release-2.7

Generated by action

cherry-picked commit 08bb137
⚠️ ⚠️ ⚠️ Conflicts happened when cherry-picking! ⚠️ ⚠️ ⚠️

On branch release-2.7
Your branch is up to date with 'origin/release-2.7'.

You are currently cherry-picking commit 08bb1373c.
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Changes to be committed:
	modified:   docs/generated/raw/kuma-cp.yaml
	modified:   pkg/config/app/kuma-cp/kuma-cp.defaults.yaml
	modified:   pkg/config/loader_test.go
	modified:   pkg/config/multizone/multicluster.go
	modified:   pkg/xds/ingress/dataplane.go
	modified:   pkg/xds/ingress/dataplane_test.go
	modified:   pkg/xds/sync/ingress_proxy_builder.go
	modified:   pkg/xds/sync/proxy_builder_test.go
	new file:   pkg/zone/available_services.go
	new file:   pkg/zone/available_services_test.go
	new file:   pkg/zone/components.go
	new file:   pkg/zone/zone_suite_test.go
	new file:   test/e2e_env/multizone/connectivity/available_services.go
	modified:   test/e2e_env/multizone/sync/sync.go
	modified:   test/framework/constants.go
	modified:   test/framework/setup.go
	modified:   test/framework/universal_app.go
	modified:   test/framework/universal_cluster.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   app/kuma-cp/cmd/run.go
	both modified:   test/e2e_env/multizone/multizone_suite_test.go