chore(e2e): add envoy config e2e tests for MeshRateLimit (kumahq#12712)

## Motivation

We need more tests before we add rules api for MeshRateLimit

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---------

Signed-off-by: Marcin Skalski <[email protected]>

test/e2e_env/universal/envoyconfig/envoyconfig.go

@@ -14,6 +14,7 @@ import (
 	"github.com/kumahq/kuma/api/openapi/types"
 	api_common "github.com/kumahq/kuma/api/openapi/types/common"
 	meshaccesslog "github.com/kumahq/kuma/pkg/plugins/policies/meshaccesslog/api/v1alpha1"
+	meshratelimit "github.com/kumahq/kuma/pkg/plugins/policies/meshratelimit/api/v1alpha1"
 	meshtimeout "github.com/kumahq/kuma/pkg/plugins/policies/meshtimeout/api/v1alpha1"
 	"github.com/kumahq/kuma/pkg/test"
 	"github.com/kumahq/kuma/pkg/test/matchers"
@@ -67,6 +68,7 @@ func EnvoyConfigTest() {
 			meshName,
 			meshtimeout.MeshTimeoutResourceTypeDescriptor,
 			meshaccesslog.MeshAccessLogResourceTypeDescriptor,
+			meshratelimit.MeshRateLimitResourceTypeDescriptor,
 		)).To(Succeed())
 	})
 
@@ -108,6 +110,7 @@ func EnvoyConfigTest() {
 		},
 		test.EntriesForFolder("meshtimeout", "envoyconfig"),
 		test.EntriesForFolder("meshaccesslog", "envoyconfig"),
+		test.EntriesForFolder("meshratelimit", "envoyconfig"),
 	)
 }