Bump hono from 4.12.14 to 4.12.18 in /extensions/copilot (#315429)

Bumps [hono](https://github.com/honojs/hono) from 4.12.14 to 4.12.18.
- [Release notes](https://github.com/honojs/hono/releases)
- [Commits](https://github.com/honojs/hono/compare/v4.12.14...v4.12.18)

---
updated-dependencies:
- dependency-name: hono
  dependency-version: 4.12.18
  dependency-type: indirect
...

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