ci: add Kubernetes 1.26 as default version to test

Kubernetes 1.26 has been released at the end of 2022 and should be
tested frequently.

Signed-off-by: Niels de Vos <ndevos@redhat.com>

.github/workflows/pull-request-commentor.yaml

@@ -37,6 +37,13 @@ jobs:
           body: |
             /test ci/centos/k8s-e2e-external-storage/1.25
 
+      - name: Add comment to trigger external storage tests for Kubernetes 1.26
+        uses: peter-evans/create-or-update-comment@v2
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          body: |
+            /test ci/centos/k8s-e2e-external-storage/1.26
+
       - name: Add comment to trigger helm E2E tests for Kubernetes 1.23
         uses: peter-evans/create-or-update-comment@v2
         with:
@@ -58,6 +65,13 @@ jobs:
           body: |
             /test ci/centos/mini-e2e-helm/k8s-1.25
 
+      - name: Add comment to trigger helm E2E tests for Kubernetes 1.26
+        uses: peter-evans/create-or-update-comment@v2
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          body: |
+            /test ci/centos/mini-e2e-helm/k8s-1.26
+
       - name: Add comment to trigger E2E tests for Kubernetes 1.23
         uses: peter-evans/create-or-update-comment@v2
         with:
@@ -79,6 +93,13 @@ jobs:
           body: |
             /test ci/centos/mini-e2e/k8s-1.25
 
+      - name: Add comment to trigger E2E tests for Kubernetes 1.26
+        uses: peter-evans/create-or-update-comment@v2
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          body: |
+            /test ci/centos/mini-e2e/k8s-1.26
+
       - name: Add comment to trigger cephfs upgrade tests
         uses: peter-evans/create-or-update-comment@v2
         with: