change renovate config

Author: JoeWang1127

hermetic_build/library_generation/owlbot/templates/java_library/renovate.json

@@ -37,22 +37,15 @@
     {
       "customType": "regex",
       "fileMatch": [
-        "^.github/workflows/unmanaged_dependency_check.yaml$"
-      ],
-      "matchStrings": [
-        "uses: googleapis/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@google-cloud-shared-dependencies/v(?<currentValue>.+?)\\n"
-      ],
-      "depNameTemplate": "com.google.cloud:sdk-platform-java-config",
-      "datasourceTemplate": "maven"
-    },
-    {
-      "fileMatch": [
+        "^.github/workflows/unmanaged_dependency_check.yaml$",
         "^.github/workflows/hermetic_library_generation.yaml$"
       ],
       "matchStrings": [
-        "uses: googleapis/sdk-platform-java/.github/scripts@v(?<currentValue>.+?)\\n"
+        "uses: googleapis/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@google-cloud-shared-dependencies/v(?<currentValue>.+?)\\n",
+        "uses: googleapis/sdk-platform-java/.github/scripts@google-cloud-shared-dependencies/v(?<currentValue>.+?)\\n",
+        "IMAGE_TAG: (?<currentValue>.+?)\\n"
       ],
-      "depNameTemplate": "com.google.api:gapic-generator-java",
+      "depNameTemplate": "com.google.cloud:sdk-platform-java-config",
       "datasourceTemplate": "maven"
     }
   ],
@@ -114,13 +107,6 @@
         "^com.fasterxml.jackson.core"
       ],
       "groupName": "jackson dependencies"
-    },
-    {
-      "matchPackagePatterns": [
-        "^com.google.api:gapic-generator-java",
-        "^com.google.cloud:sdk-platform-java-config"
-      ],
-      "groupName": "SDK platform Java dependencies"
     }
   ],
   "semanticCommits": true,