chore: update googleapis commitish to c3e3d8a

[cloud-java-bot]

Updated googleapis commitish in librarian.yaml to googleapis/googleapis@c3e3d8a

💡 Note: If this PR is still open when the daily update workflow runs next, it will be closed and replaced with a new PR containing the latest updates.

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• java-container/samples/snippets/generated/com/google/cloud/container/v1/clustermanager/completecontrolplaneupgrade/AsyncCompleteControlPlaneUpgrade.java:19, tag container_v1_generated_ClusterManager_CompleteControlPlaneUpgrade_async
• java-container/samples/snippets/generated/com/google/cloud/container/v1/clustermanager/completecontrolplaneupgrade/SyncCompleteControlPlaneUpgrade.java:19, tag container_v1_generated_ClusterManager_CompleteControlPlaneUpgrade_sync

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[gemini-code-assist]

Code Review

This pull request introduces a new method completeControlPlaneUpgrade to the ClusterManagerClient and its associated stubs, along with the necessary protobuf definitions, request/response types, and gRPC/HTTP-JSON method descriptors. It also includes updates to documentation and native-image reflection configuration. Additionally, there are numerous updates to deprecation notices in existing request/response classes to reflect updated line numbers in cluster_service.proto. I have no feedback to provide as these changes appear to be standard library updates.