Bump zod from 3.24.2 to 4.3.6

Bumps [zod](https://github.com/colinhacks/zod) from 3.24.2 to 4.3.6.
- [Release notes](https://github.com/colinhacks/zod/releases)
- [Commits](colinhacks/zod@v3.24.2...v4.3.6)

---
updated-dependencies:
- dependency-name: zod
  dependency-version: 4.3.6
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -45,7 +45,7 @@
     "pg": "^8.20.0",
     "swagger-jsdoc": "^6.2.8",
     "swagger-ui-express": "^5.0.1",
-    "zod": "^3.24.2"
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.4",