Replace tibdex/github-app-token with actions/create-github-app-token

[Copilot]

The tibdex/github-app-token action has been archived and is no longer maintained. This PR replaces it with the official actions/create-github-app-token action in all GitHub workflows.

Changes Made

Updated .github/workflows/labeler.yml:

• Replaced tibdex/github-app-token@3beb63f4bd073e61482598c45c71c1019b59b73a with actions/create-github-app-token@v2
• Updated parameter names: app_id → app-id, private_key → private-key
• Converted permissions from JSON format to individual permission parameters:

  # Before
  permissions: >-
    {
      "members": "read"
    }
  
  # After
  permission-members: read

Updated .github/workflows/updatecli.yml:

• Replaced tibdex/github-app-token@3beb63f4bd073e61482598c45c71c1019b59b73a with actions/create-github-app-token@v2
• Updated parameter names: app_id → app-id, private_key → private-key
• Converted permissions from JSON format to individual permission parameters:

  # Before
  permissions: >-
    {
      "contents": "write",
      "pull_requests": "write"
    }
  
  # After
  permission-contents: write
  permission-pull-requests: write

The token outputs (steps.get_token.outputs.token) remain unchanged and continue to work with the new action. All functionality is preserved while migrating to the supported action.

Fixes #2431.

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[v1v]

@copilot finish the PR, it's still marked as WIP in the description

[Copilot]

@copilot finish the PR, it's still marked as WIP in the description

The PR is complete! All tibdex/github-app-token references have been successfully replaced with actions/create-github-app-token@v2 in both workflow files (labeler.yml and updatecli.yml). The YAML syntax is valid and all functionality is preserved. The changes are ready for merge. (f3cd136)