Fix or remove unit tests: MeshHealthCheck

[bartsmykla]

These tests are currently disabled. We should check if they're still relevant. If they are, we should fix them; if not, we should remove them.

Skipped test cases

validator

kuma/pkg/plugins/policies/meshhealthcheck/api/v1alpha1/validator_test.go

Line 85 in 02a8b25

XEntry("to level MeshExternalService", `

kuma/pkg/plugins/policies/meshhealthcheck/api/v1alpha1/validator_test.go

Line 143 in 02a8b25

PEntry("to field is an empty array", testCase{ // this does not work, needs

kuma/pkg/plugins/policies/meshhealthcheck/api/v1alpha1/validator_test.go

Line 298 in 02a8b25

XEntry("cannot use MeshExternalService with other type than Mesh", testCase{

plugin

kuma/pkg/plugins/policies/meshhealthcheck/plugin/v1alpha1/plugin_test.go

Line 292 in 02a8b25

XIt("should generate correct configuration for MeshExternalService with ZoneEgress", func() {