ci: trigger icp-cli bump workflow after release

[lwshang]

Summary

• Add bump-icp-cli job at the end of release.yml that runs after the GitHub release and Docker manifest jobs succeed.
• Job mints a PR_AUTOMATION_BOT_PUBLIC App token scoped to dfinity/icp-cli and dispatches bump-network-launcher.yml with the current release tag.

Needs dfinity/icp-cli#561 merge first.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds a follow-up CI job to the release workflow that, after a successful GitHub release and Docker manifest publish, dispatches the bump-network-launcher.yml workflow in the dfinity/icp-cli repository using a GitHub App token, passing the released tag as the version input.

Changes:

• New bump-icp-cli job gated on tag pushes and dependent on release + docker-manifest.
• Mints a scoped GitHub App token via actions/create-github-app-token for dfinity/icp-cli.
• Triggers bump-network-launcher.yml on main via gh workflow run with the release tag.

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