deps: bump zod from 3.25.76 to 4.4.3 in /mcp-server (#25)

Bumps [zod](https://github.com/colinhacks/zod) from 3.25.76 to 4.4.3.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v3.25.76...v4.4.3)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 4.4.3
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

mcp-server/package-lock.json

@@ -26,7 +26,7 @@
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.12.1",
     "ssh2": "^1.16.0",
-    "zod": "^3.23.0"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/node": "^25.9.0",