release-please custom file generation

Author: chingor13

.github/workflows/hermetic_library_generation.yaml

@@ -43,4 +43,4 @@ jobs:
         base_ref: ${{ github.base_ref }}
         head_ref: ${{ github.head_ref }}
         token: ${{ secrets.CLOUD_JAVA_BOT_GITHUB_TOKEN }}
-        image_tag: 2.67.1-SNAPSHOT
+        image_tag: 2.67.1-SNAPSHOT  # {x-version-update:gapic-generator-java:current}

release-please-config.json

@@ -5,6 +5,21 @@
   "include-component-in-tag": false,
   "group-pull-request-title-pattern": "chore(${branch}): release ${version}",
   "packages": {
-    ".": {}
+    ".": {
+      "extra-files": [
+        ".github/workflows/hermetic_library_generation.yaml",
+        "sdk/platform-java/WORKSPACE",
+        "sdk/platform-java/.cloudbuild/graalvm/cloudbuild.yaml",
+        "sdk/platform-java/.cloudbuild/graalvm/cloudbuild-test-a.yaml",
+        "sdk/platform-java/.cloudbuild/graalvm/cloudbuild-test-b.yaml",
+        "sdk/platform-java/.cloudbuild/graalvm/cloudbuild-test-c.yaml",
+        "sdk/platform-java/.cloudbuild/library_generation/cloudbuild-library-generation-push.yaml",
+        "sdk/platform-java/.cloudbuild/library_generation/library_generation.Dockerfile",
+        "sdk/platform-java/.cloudbuild/library_generation/library_generation_airlock.Dockerfile",
+        "sdk/platform-java/hermetic_build/library_generation/owlbot/templates/java_library/.kokoro/presubmit/graalvm-native-a.cfg",
+        "sdk/platform-java/hermetic_build/library_generation/owlbot/templates/java_library/.kokoro/presubmit/graalvm-native-b.cfg",
+        "sdk/platform-java/hermetic_build/library_generation/owlbot/templates/java_library/.kokoro/presubmit/graalvm-native-c.cfg"
+      ]
+    }
   }
 }