adapt to istio 1.26

Signed-off-by: YaoZengzeng <yaozengzeng@huawei.com>

Author: YaoZengzeng

.github/workflows/e2e-ipv6-istio-1.23.yml renamed to .github/workflows/e2e-ipv6-istio-1.26.yml

@@ -1,4 +1,4 @@
-name: E2E IPv6 Test(istio 1.23)
+name: E2E IPv6 Test(istio 1.26)
 on: 
   pull_request:
     paths-ignore:
@@ -23,4 +23,4 @@ jobs:
     - name: E2E IPv6 Test
       shell: bash
       run: |
-        sudo ISTIO_VERSION="1.23.0" make e2e-ipv6
+        sudo ISTIO_VERSION="1.26.0" make e2e-ipv6

.github/workflows/e2e-istio-1.23.yml renamed to .github/workflows/e2e-istio-1.26.yml

@@ -1,4 +1,4 @@
-name: E2E Test(istio 1.23)
+name: E2E Test(istio 1.26)
 on: 
   pull_request:
     paths-ignore:
@@ -23,4 +23,4 @@ jobs:
     - name: E2E Test
       shell: bash
       run: |
-        sudo ISTIO_VERSION="1.23.0" make e2e
+        sudo ISTIO_VERSION="1.26.0" make e2e