Merge pull request kubernetes-sigs#714 from jkh52/test-matrix

Advance e2e test matrix (remove v1.28 and add v1.31).

Author: k8s-ci-robot

.github/workflows/e2e.yaml

@@ -63,7 +63,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        k8s: [ v1.28.7, v1.29.2, v1.30.4 ]
+        k8s: [ v1.30.8, v1.31.4, v1.32.0 ]
         connection-mode: [ grpc, http-connect ]
     steps:
     - name: Install kind