fix: bump envoy submodule for doAfterVmCallActions drain-to-local (#4034) (#4080)

Signed-off-by: 澄潭 <zty98751@alibaba-inc.com>

test/e2e/conformance/tests/go-wasm-test-redis-inject-spin.go

@@ -0,0 +1,75 @@
+// Copyright (c) 2026 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tests
+
+import (
+	"testing"
+
+	"github.com/alibaba/higress/v2/test/e2e/conformance/utils/http"
+	"github.com/alibaba/higress/v2/test/e2e/conformance/utils/suite"
+)
+
+func init() {
+	Register(WasmPluginsRedisInjectSpin)
+}
+
+// WasmPluginsRedisInjectSpin reproduces issue #4034: a deferred async Redis
+// failure callback synchronously calls injectEncodedDataToFilterChain, which
+// (pre-fix) makes WasmBase::doAfterVmCallActions re-queue an action forever and
+// spins a worker at 100% CPU. Redis is pointed at an unroutable endpoint so the
+// failure callbacks fire under concurrency.
+//
+// With the Layer A drain-to-local fix in place, the after-vm-call drain
+// terminates over a snapshot, deferred callbacks complete, and the gateway keeps
+// serving requests. The test asserts the plugin route stays responsive (200)
+// rather than hanging — a spinning worker would fail this via timeout.
+var WasmPluginsRedisInjectSpin = suite.ConformanceTest{
+	ShortName:   "WasmPluginsRedisInjectSpin",
+	Description: "Reproduce #4034: redis-failure callback + inject must not spin the worker; gateway stays responsive.",
+	Manifests:   []string{"tests/go-wasm-test-redis-inject-spin.yaml"},
+	Features:    []suite.SupportedFeature{suite.WASMGoConformanceFeature},
+	Test: func(t *testing.T, suite *suite.ConformanceTestSuite) {
+		testcases := []http.Assertion{
+			{
+				Meta: http.AssertionMeta{
+					TargetBackend:   "infra-backend-v1",
+					TargetNamespace: "higress-conformance-infra",
+				},
+				Request: http.AssertionRequest{
+					ActualRequest: http.Request{
+						Host:             "redis-inject-spin.com",
+						Path:             "/",
+						UnfollowRedirect: true,
+					},
+				},
+				Response: http.AssertionResponse{
+					ExpectedResponse: http.Response{
+						StatusCode: 200,
+					},
+				},
+			},
+		}
+		t.Run("WasmPlugins redis-inject-spin (#4034 CPU spin repro)", func(t *testing.T) {
+			// Drive repeated requests: on the pre-fix host the deferred callback
+			// re-queues forever and a worker spins, so the route stops
+			// responding; on the fixed host every request completes.
+			for i := 0; i < 20; i++ {
+				for _, testcase := range testcases {
+					http.MakeRequestAndExpectEventuallyConsistentResponse(t, suite.RoundTripper, suite.TimeoutConfig, suite.GatewayAddress, testcase)
+				}
+			}
+		})
+	},
+}

test/e2e/conformance/tests/go-wasm-test-redis-inject-spin.yaml

@@ -0,0 +1,75 @@
+# Copyright (c) 2026 Alibaba Group Holding Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A "dead" Redis: the Service (with manual Endpoints) makes Higress create the
+# envoy cluster so RedisInit succeeds and commands dispatch, but the endpoint IP
+# is unroutable (240.0.0.1, class-E) so every connection fails -> the plugin's
+# redis-failure callbacks fire, which is the #4034 trigger.
+apiVersion: v1
+kind: Service
+metadata:
+  name: dead-redis
+  namespace: higress-conformance-infra
+spec:
+  ports:
+    - name: redis
+      port: 6379
+      protocol: TCP
+      targetPort: 6379
+---
+apiVersion: v1
+kind: Endpoints
+metadata:
+  name: dead-redis
+  namespace: higress-conformance-infra
+subsets:
+  - addresses:
+      - ip: 240.0.0.1
+    ports:
+      - name: redis
+        port: 6379
+        protocol: TCP
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: redis-inject-spin
+  namespace: higress-conformance-infra
+spec:
+  ingressClassName: higress
+  rules:
+    - host: "redis-inject-spin.com"
+      http:
+        paths:
+          - pathType: Prefix
+            path: "/"
+            backend:
+              service:
+                name: infra-backend-v1
+                port:
+                  number: 8080
+---
+apiVersion: extensions.higress.io/v1alpha1
+kind: WasmPlugin
+metadata:
+  name: test-redis-inject-spin
+  namespace: higress-system
+spec:
+  defaultConfig:
+    service_name: "dead-redis.higress-conformance-infra.svc.cluster.local"
+    service_port: 6379
+    redis_key: "higress-4034-key"
+    inject_body: "injected-by-4034-repro\n"
+    inject_count: 16
+  url: file:///opt/plugins/wasm-go/extensions/test-redis-inject-spin/plugin.wasm