Bump hono from 4.8.5 to 4.9.6 in /mastra-agents

Bumps [hono](https://github.com/honojs/hono) from 4.8.5 to 4.9.6.
- [Release notes](https://github.com/honojs/hono/releases)
- [Commits](honojs/hono@v4.8.5...v4.9.6)

---
updated-dependencies:
- dependency-name: hono
  dependency-version: 4.9.6
  dependency-type: indirect
...

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Author: dependabot[bot]