chore: Renovate updates graalvm configs

Author: lqiu96

renovate.json

@@ -20,6 +20,17 @@
     ".github/workflows/samples.yaml"
   ],
   "customManagers": [
+    {
+      "customType": "regex",
+      "managerFilePatterns": [
+        "/^.kokoro/presubmit/graalvm-native.*.cfg$/"
+      ],
+      "matchStrings": [
+        "value: \"gcr.io/cloud-devrel-public-resources/graalvm.*:(?<currentValue>.*?)\""
+      ],
+      "depNameTemplate": "com.google.cloud:sdk-platform-java-config",
+      "datasourceTemplate": "maven"
+    },
     {
       "customType": "regex",
       "fileMatch": [