Update PR workflow

1. Update all dependencies, including subpackages, from the repository root.
   • For Yarn projects, run yarn up '**'.
   • For Bun projects, run bunx @willbooster/agent-skills@latest update-bun-deps.
2. Run either yarn verify or bun verify.
3. Fix any issues reported by the verify command.
   • For updating Vitest, see https://raw.githubusercontent.com/WillBooster/shared/refs/heads/main/packages/wb/vitest.config.ts
   • For other issues, refer to the latest official documentation.
4. Check whether each updated dependency is still required for the project.
   • If a dependency is no longer required, remove it from the project.
5. Commit and push the changes, then run either the open-pr or update-pr skill.
6. Run the complete-pr skill.