test: fix e2e upstream health check assertions

Upstream Name is cleared when embedded in a service object
(httproute translator sets Name="" for single-backend upstreams).
Filtering by name always fails; rely on Checks field instead.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: AlinsRan

test/e2e/crds/v1alpha1/backendtrafficpolicy.go

@@ -20,7 +20,6 @@ package v1alpha1
 import (
 	"context"
 	"fmt"
-	"strings"
 	"time"
 
 	. "github.com/onsi/ginkgo/v2"
@@ -241,7 +240,7 @@ spec:
 
 			var target *adctypes.Upstream
 			for _, u := range ups {
-				if strings.Contains(u.Name, "httpbin-service-e2e-test") && u.Checks != nil {
+				if u.Checks != nil {
 					target = u
 					break
 				}
@@ -277,7 +276,7 @@ spec:
 
 			var target *adctypes.Upstream
 			for _, u := range ups {
-				if strings.Contains(u.Name, "httpbin-service-e2e-test") && u.Checks != nil && u.Checks.Passive != nil {
+				if u.Checks != nil && u.Checks.Passive != nil {
 					target = u
 					break
 				}
@@ -315,7 +314,7 @@ spec:
 			Expect(err).ToNot(HaveOccurred())
 			hasHealthCheck := false
 			for _, u := range ups {
-				if strings.Contains(u.Name, "httpbin-service-e2e-test") && u.Checks != nil {
+				if u.Checks != nil {
 					hasHealthCheck = true
 					break
 				}
@@ -331,9 +330,7 @@ spec:
 			ups, err = s.DefaultDataplaneResource().Upstream().List(context.Background())
 			Expect(err).ToNot(HaveOccurred())
 			for _, u := range ups {
-				if strings.Contains(u.Name, "httpbin-service-e2e-test") {
-					Expect(u.Checks).To(BeNil(), "upstream should not have health check after policy deletion")
-				}
+				Expect(u.Checks).To(BeNil(), "upstream should not have health check after policy deletion")
 			}
 		})
 	})