build(deps): bump zod from 3.25.48 to 3.25.56 in /server (#506)

Bumps [zod](https://github.com/colinhacks/zod) from 3.25.48 to 3.25.56.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v3.25.48...v3.25.56)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 3.25.56
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

server/package-lock.json

@@ -22,7 +22,7 @@
     "hono": "^4.7.11",
     "pino": "^9.7.0",
     "yaml": "^2.8.0",
-    "zod": "^3.25.48"
+    "zod": "^3.25.56"
   },
   "devDependencies": {
     "@cloudflare/workers-types": "^4.20250607.0",