chore: add k8s v1.31 CI test (#613)

Signed-off-by: JenTing Hsiao <hsiaoairplane@gmail.com>

Author: jenting

.github/workflows/lint-test.yaml

@@ -21,6 +21,7 @@ jobs:
           - 1.28.0
           - 1.29.0
           - 1.30.0
+          - 1.31.0
     steps:
       - name: Checkout
         uses: actions/checkout@v3