build(deps): bump hono from 4.8.5 to 4.9.6 in /kms/auth-eth-bun

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: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

kms/auth-eth-bun/package.json

@@ -15,7 +15,7 @@
     "check": "bun run lint && bun run test:run"
   },
   "dependencies": {
-    "hono": "4.8.5",
+    "hono": "4.9.6",
     "@hono/zod-validator": "0.2.2",
     "zod": "3.25.76",
     "viem": "2.31.7"