chore: increase resource for merged ut to increase stability

[purelind]

increase resource for merged ut to increase stability

[ti-chi-bot]

I have already done a preliminary review for you, and I hope to help you do a better job.

Summary:
The pull request increases the resources for merged unit tests to increase stability. The changes are made in the pod-merged_unit_test.yaml file, where the CPU and memory limits are increased for the golang container. A new volume mount is added for the bazel repository cache.

Potential Problems:

• The new resource limits are significantly higher than before. This may cause resource exhaustion and impact other pods running on the same node.
• The addition of a new volume mount for bazel repository cache may impact the performance of the pod.

Fixing Suggestions:

• Monitor the resource usage of the pod after the changes are made to ensure that it doesn't cause resource exhaustion.
• Consider using a horizontal pod autoscaler to adjust the resources based on the workload.
• Use a dedicated node pool for running the high resource pods.
• Test the impact of the new volume mount on the pod's performance before deploying to production.

[ti-chi-bot]

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