Update message suggests `npm` instead of Bun

What version of Codex is running?

0.45.0

Which model were you using?

gpt-5-codex

What platform is your computer?

_No response_

What steps can reproduce the bug?

• Install via bun i -g @openai/codex
• Wait for update to be available
• Update message suggests updating via npm

What is the expected behavior?

Message should say Run bun install -g @openai/codex@latest

What do you see instead?

╭────────────────────────────────────────────────────╮
│ ✨ Update available! 0.45.0 -> 0.46.0.             │
│                                                    │
│ See full release notes:                            │
│                                                    │
│ https://github.com/openai/codex/releases/latest    │
│                                                    │
│ Run npm install -g @openai/codex@latest to update. │
╰────────────────────────────────────────────────────╯

Additional information

_No response_