chore(deps): bump hono from 4.12.12 to 4.12.26 in /gemini-extension

Bumps [hono](https://github.com/honojs/hono) from 4.12.12 to 4.12.26.
- [Release notes](https://github.com/honojs/hono/releases)
- [Commits](honojs/hono@v4.12.12...v4.12.26)

---
updated-dependencies:
- dependency-name: hono
  dependency-version: 4.12.26
  dependency-type: indirect
...

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Author: dependabot[bot]