chore(backend): bump pino from 9.13.1 to 10.0.0 in /services/backend

Bumps [pino](https://github.com/pinojs/pino) from 9.13.1 to 10.0.0.
- [Release notes](https://github.com/pinojs/pino/releases)
- [Commits](pinojs/pino@v9.13.1...v10.0.0)

---
updated-dependencies:
- dependency-name: pino
  dependency-version: 10.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

services/backend/package.json

@@ -40,7 +40,7 @@
     "lucia": "^3.2.2",
     "nanoid": "^5.1.6",
     "nodemailer": "^7.0.6",
-    "pino": "^9.11.0",
+    "pino": "^10.0.0",
     "pino-pretty": "^13.1.1",
     "pug": "^3.0.2",
     "zod": "^4.0.17",