Codex fails to start github MCP

[dsyme]

2025-09-10T17:54:44.855487Z ERROR codex_core::codex: MCP client for `github` failed to start: missing field `user_agent`
[2025-09-10T17:54:44] ERROR: MCP client for `github` failed to start: missing field `user_agent`

https://github.com/githubnext/gh-aw/actions/runs/17622421035/job/50070992826

[github-actions]

Created related issue: #666

[dsyme]

Closed by e2e test cleanup

[pelikhan]

openai/codex@8d76608