Add explicit path in protos change

[fbac]

Configure the nightly GitHub Actions workflow to include files under pkg/proto/ in the create-pull-request step to add an explicit path in protos change

This updates the nightly workflow to pass an add-paths input with a multi-line value that includes pkg/proto/ to the create-pull-request action, ensuring files under that directory are included when the nightly PR is created.

• Modify nightly.yml to set add-paths with pkg/proto/ for the create-pull-request step

📍Where to Start

Start with the create-pull-request step configuration in nightly.yml.

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Macroscope summarized 5cacc6d.

[graphite-app]

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