bump k8s test suite versions

Author: klopfenstein-puzzle

.github/workflows/test-kubernetes.yaml

@@ -17,9 +17,9 @@ jobs:
       matrix:
         # Always quote versions to prevent int truncation (1.30 -> 1.3)
         # https://kubernetes.io/releases
-        k8s-version: ["1.30", "1.31", "1.32"]
+        k8s-version: ["1.33", "1.34", "1.35"]
         # https://cert-manager.io/docs/releases/ (Always include path version)
-        cm-version: ["1.16.0", "1.17.0"]
+        cm-version: ["1.18.6", "1.19.4"]
 
     steps:
     - uses: actions/checkout@v4